Rory McIlroy has reiterated he has no interest in joining the Saudi-backed LIV Golf Invitational Series and believes decisions made purely based on money "usually doesn't end up going the right way."

Dustin Johnson and Phil Mickelson this week quit the PGA Tour after agreeing massive paydays to join the breakaway LIV Tour.

Bryson DeChambeau is reportedly set to follow for the second event of the series, which starts in Portland later this month, while Patrick Reed and Rickie Fowler are also said to be ready to sign up.

Ian Poulter, Sergio Garcia and Lee Westwood are among the other players who will tee off in the first LIV Tour event at Centurion Golf Club on Thursday.

McIlroy has made it clear he is committed to the PGA Tour and will defend his Canadian Open title this week.

The four-time major champion says he would rather compete against the best players in the world than be tempted by wherever he could maximise his earnings.

"I think my stance on it has been pretty clear from the start. It's not something that I want to participate in," said McIlroy.

"I certainly understand the guys that went and understand what their goals and their ambitions are in their life, and I'm certainly not knocking anyone for going.

"It is their life. It is their decision. They can live it the way they want to, but, for me, I want to play on the PGA Tour against the best players in the world.

"I was speaking to a few people yesterday and one of the comments was any decision that you make in your life that is purely for money usually doesn't end up going the right way.

"Obviously, money is a deciding factor in a lot of things in this world but if it is purely for money, it never seems to go the way you want it to, and I've had that before a couple of times before in my life.

"There are other things that are a part of it too, but it is a weird time in professional golf. I said it a couple of weeks ago, we are just going to have to see how this season plays out, and if any other guys do decide to go another direction than the established tours, see what the consequences are.

"For me right now, I can only speak personally. It is not something I envisage ever doing and I'm happy playing on the PGA Tour. I have a nice schedule, but I can pick for myself.

"I can spend a lot of time at home with my family if I want to, prioritise the majors and there is nothing about my schedule or my life or my earnings or anything that I would change."

Ian Poulter and Lee Westwood on Wednesday faced a grilling over their participation in the Saudi-backed LIV Golf Invitational Series that they hope will not end their Ryder Cup days.

The English duo will tee off at Centurion Golf Club when the first event of the controversial breakaway tour starts on Thursday.

Dustin Johnson and Phil Mickelson this week quit the PGA Tour after agreeing huge offers to join the LIV Tour.

Westwood and Poulter were quizzed over their morals as they became the latest players to be asked about Saudi Arabia's human rights record.

When asked if he would play in a tournament organised by Russian president Vladimir Putin, Poulter said: "I'm not even going to comment on speculation" before refusing to answer when quizzed if there is anywhere he would not play on a moral basis.

Westwood then replied "you're just asking us to a hypothetical question there and I'm not going to your answer" after being asked if he would have played in Apartheid South Africa.

Signing up to the LIV Tour has led to uncertainty over whether Ryder Cup stalwarts Westwood and Poulter were ruling themselves out of representing Europe again.

Poulter said: "We don't know [if they could be involved in the Ryder Cup]. I'd like to think it wouldn't [prevent them from being involved], all the golf I've played around the world in all the different countries and tours I don't see why this should be any different.

"It's an unknown risk, we don't know how DP World Tour will view it, it's obviously a factor."

Westwood, who pointed out that he has played on European Tour events in Saudi Arabia, said: "It's something I have to take into account. I'm not sure about the playing days, I'm 50 next April. The captaincy could be in jeopardy as well, but Ian pretty much covered it all.

"What I will say is myself and Ian have been members of the PGA Tour while we've been on the European Tour and that's had no effect in the past on whether people have been captains.

"LIV Golf is another tour so why should it be any different?"

Phil Mickelson will not resign from the PGA Tour and has confirmed he intends to take part in next week's U.S. Open, despite his LIV Golf Invitational Series involvement.

The 51-year-old will end a four-month self-imposed exile from golf on Thursday when the inaugural LIV Golf event gets underway at Centurion Club on the outskirts of London.

Mickelson was met with widespread condemnation after criticising the PGA Tour earlier this year, for which he apologised and vowed to take a step back from the game.

That saw the six-time major champion miss The Masters and the defence of his US PGA Championship, though he is still registered to play at the upcoming U.S. Open.

And while Mickelson refused to confirm whether he has been serving a PGA Tour ban for his controversial comments, he will not voluntarily quit the American circuit.

"I've been a part of the tour for over 30 years and I've had a lot of incredible memories and experiences, tournaments that I've won and lost," he said on Wednesday.

"I've gained a lot, received a lot and I'm grateful for everything the tour has done for me. I've also worked hard to contribute and build and add value to the tour in my time there.

"I worked hard to get a lifetime exemption. I don't want to give that up. I don't feel I should have to. 

"I don't know what's going to happen. I've earned that and I don't plan on just giving it up.

"I've really enjoyed my time on the PGA Tour. I've had some incredible experiences, great memories and I have a lot of strong opinions that it should and could be a lot better. 

"One mistake I've made is voicing them publicly. I will make an effort to keep those conversations behind closed doors moving forward."

Mickelson then confirmed he will compete in next week's U.S. Open in Massachusetts and added: "I'm looking forward to it."

The United States Golf Association, which runs the major, has already announced it will not stop those competing in the LIV Golf series from playing at The Country Club.

Unlike Mickelson, others taking part in the Saudi-backed breakaway LIV Golf circuit – such as Dustin Johnson and Sergio Garcia – have resigned from the PGA Tour.

"I saw that and I think they're making the decision that's best for them personally," Mickelson said.

"I respect that. As a lifetime member I'm not required to play 15 events. I don't have to play any. I can play one. So I don't see a reason for me to give that up."

Mickelson is reported to have been given a $200million signing-on fee to appear in LIV Golf events, but he refused to be drawn on the specifics during a tense news conference.

"Contract agreements should remain private," he said.

Phil Mickelson said he does "not condone human rights violations" but signed up to participate in the controversial Saudi-backed LIV Golf Invitational Series because he thinks it can do good for the sport.

Mickelson is arguably the most-notable name involved ahead of the first event of a series previously known as the 'Super Golf League', which gets under way at the Centurion Club, near London, on Thursday.

A lucrative breakaway from the PGA Tour and DP World Tour, its bankrolling by Saudi Arabia's Public Investment Fund (PIF) has attracted some big names.

Each regular-season event will have a purse of €25million, which is already $5m greater than the most-lucrative event on the PGA Tour, the Players Championship.

LIV Golf's season-ending championship event will have $50m up for grabs, making it comfortably the biggest purse in the sport.

But funding of the series by Saudi Arabia's PIF has led to significant criticism due to the country's poor humans rights record, with critics labelling LIV Golf another example of "sportswashing" – the practice of improving a tarnished reputation through the hosting or funding sporting events or entities.

Mickelson found himself at the centre of the controversy last year when admitting to being aware of Saudi Arabia's grim record but signed up to LIV Golf anyway because "this is a once-in-a-lifetime opportunity to reshape how the PGA Tour operates".

On the eve of the first tournament, Mickelson received a grilling from the media, and he told reporters: "I don't condone human rights violations, I don't know how I can be any more clear.

"I understand your question but again I love this game of golf, I've seen the good it's done and I see the opportunity for LIV Golf to do a lot of good for the game over the world and I'm excited to be a part of this opportunity."

During his news conference, Mickelson again offered his regret at some public comments made in the past.

But he was then asked if he was sorry for "speaking the truth about the Saudis" or for the "shameless hypocrisy of taking their money anyway".

He replied: "I understand many people have very strong opinions and may disagree with my decision, and I can empathise with that."

Following a significant pause, he continued: "But at this time this is an opportunity that gives me the chance to have the most balance in my life going forward and I think this is going do a lot of good for the game."

Tiger Woods will not play at the U.S. Open this month but plans to be at St Andrews for The Open in July.

The 15-time major champion withdrew from the US PGA Championship last month after shooting a nine-over 79 in his third round.

Woods was playing in only his second tournament since suffering serious leg injuries in a car crash in February 2021.

The 46-year-old had made a sensational comeback at The Masters in April, defying the odds to make the cut at Augusta before finishing 47th.

Woods stated ahead of the US PGA Championship at Southern Hills that he felt "a lot stronger" than he did after making an unlikely Masters comeback, but struggled on moving day in the second major of the year.

The legendary American on Tuesday confirmed he will not feature in the U.S. Open, which starts at The Country Club in Brookline, Massachusetts on June 16.

However, he is aiming to tee off in the JP McManus Pro-Am at Adare Manor in County Limerick on July 4-5 and play in the last major of the year in Scotland, which gets under way on July 14.

He tweeted: "I previously informed the USGA that I will not be competing in the @usopengolf as my body needs more time to get stronger for major championship golf.

"I do hope and plan to be ready to play in Ireland at @JPProAm and at @TheOpen next month. I'm excited to get back out there soon!"

Woods outlined his plans amid a storm in the golfing world, with his compatriots Dustin Johnson and Phil Mickelson having resigned from the PGA Tour to play in the Saudi-backed LIV Golf Invitational Series.

Greg Norman, the CEO of LIV Golf, this week told the Washington Post that Woods had turned down a "mind-blowingly enormous" offer to play in the controversial breakaway series.

Talor Gooch has claimed criticism of LIV Golf stars for sportswashing is not fair, explaining: "I'm not that smart... golf is hard enough."

Gooch has been named as one of 12 team captains for the new Saudi-backed LIV Golf Invitational Series.

The two-time PGA Tour winner will captain Torque GC, with bigger names like Phil Mickelson – leading Hy Flyers GC – and Dustin Johnson – of 4 Aces GC – among his opponents.

All of those to abandon the PGA Tour for the new project have come in for scrutiny given the source of the huge financial backing the breakaway league has.

LIV Golf is being funded by Saudi Arabia's Public Investment Fund (PIF), linking the series to a country with a hugely concerning human rights record.

As with other PIF acquisitions, such as Premier League club Newcastle United, LIV Golf has been highlighted as an example of sportswashing for the Saudi regime.

But this suggestion was put to Gooch on Tuesday, as he faced the media at the event's launch.

"I don't think that's fair," he said. "Also, I'm a golfer. I'm not that smart. I try to hit a golf ball into a small hole. Golf is hard enough.

"I try to worry about golf, and I'm excited about this week."

Gooch has earned $9million over his entire PGA Tour career; a single win at one of these events would fetch almost half of that at $4m. Even the player in last place at each regular season tournament will receive $120,000.

Dustin Johnson has resigned from the PGA Tour in order to play in the Saudi-backed LIV Golf Invitational Series.

The two-time major winner is one of the biggest names to sign up for the new league, and his loss represents a significant blow to the PGA Tour, of which he had been a member since 2007.

Johnson's decision to turn his back on the PGA Tour means he will be unable to complete in the Ryder Cup.

"It's too early to speak on what the consequences will be, but as of right now, I resigned my membership from PGA Tour, I'm going to play here for now, that's the plan," he told reporters.

"But what the consequence are going to be, I obviously can't comment on how the Tour is going to handle it.

"The majors, again I can't answer for the majors, but hopefully they'll allow us to play. Obviously I'm exempt for the majors, so I plan on playing there unless I hear otherwise."

Adding on the Ryder Cup, he said: "The Ryder Cup is unbelievable and has meant a lot to me, but ultimately I decided this was best for me and my family.

"All things are subject to change, and hopefully at some point it will change and I will get a chance to do that again."

Phil Mickelson has confirmed he will play in the first event of the controversial LIV Golf Invitational Series, but he still intends to feature at the upcoming majors this year.

Dustin Johnson headlined the entrant list for the opening event at Centurion Club near London, which starts on Thursday, but Mickelson was an initial surprise omission from the entry list for the Saudi Arabia-funded competition.

Sergio Garcia, Louis Oosthuizen and Lee Westwood are also among the high-profile names set to feature at the three-day event that will have 12 teams and 48 players.

Mickelson was met with widespread condemnation after criticising the PGA Tour earlier this year, for which he apologised and vowed to take a step back from the game – even missing the defence of his US PGA Championship last month.

His comments on LIV Golf were also met with significant backlash after he said Saudi Arabia has "a horrible record on human rights", but added he was willing to commit to the league as it was "a once-in-a-lifetime opportunity to reshape how the PGA Tour operates".

But Mickelson, who once again reiterated his apologies for his earlier comments, announced on Monday that he will indeed play at the inaugural LIV Golf event.

"I am ready to come back to play the game I love but after 32 years this new path is a fresh start, one that is exciting for me at this stage of my career and is clearly transformative, not just for myself, but ideally for the game and my peers," the American said in a statement. 

"I also love the progressive format and think it will be exciting for fans. Just as importantly, it will provide balance, allowing me to focus on a healthier approach to life on and off the course.

"I am incredibly grateful for what this game and the PGA Tour has given me. I would like to think that I have given back as well but now I am excited about this new opportunity."

Mickelson opted to not defend his PGA Championship this year amid the furore, but the 51-year-old plans to return to compete at the majors alongside his LIV Golf involvement.

"I am thrilled to begin with LIV Golf and I appreciate everyone involved. I also intend to play the majors," he added.

"I fully realise and respect some may disagree with this decision and have strong opinions and I emphasise with that. I have a renewed spirit and excitement for the game.

"I am incredibly grateful for the support of my fans, partners, and peers and I hope in time, those sentiments, relationships and support continue."

Greg Norman, chief executive and commissioner of LIV Golf, added in a statement reported by Sky Sports: "Phil Mickelson is unequivocally one of the greatest golfers of this generation.

"His contributions to the sport and connection to fans around the globe cannot be overstated and we are grateful to have him.

"He strengthens an exciting field for London where we're proud to launch a new era for golf."

Billy Horschel secured victory at the Memorial Tournament on Sunday, shooting an even-par 72 to finish four strokes ahead of Aaron Wise.

Horschel had a healthy buffer at the start of play on Sunday with a five-shot lead and kept it relatively steady, but had to come up with some big shots on the back nine to take the win.

After a bogey on the sixth, the 35-year-old got back to even with a birdie on the par-three 10th.

A bogey on the 12th took him back to one-over, yet a massive put on the par-five 15th for eagle gave Horschel a commanding lead.

It effectively shut the door on Wise, who had also birdied on 15, before he closed out the round with a bogey for a one-under 71.

It was Horschel's seventh tournament win on the PGA Tour, but his first with his family present. Greeted by them and tournament founder Jack Nicklaus after the win, Horschel spoke of the added significance of this triumph.

"It's special, it truly is," Horschel said after his round. "Jack's a legend of the game and to win his event, you've seen the guys who have won this event, just legends in their own right, it's pretty special.

"We joke about it in the family but my wife and my kids have never been to any of my victories. My parents have, and so, having a five-shot lead knowing that this was mine to sort of go out and win or lose, and having them here, I really wanted to win."

Horschel moved into the FedEx Cup's top 10 with the win, just 19 points behind Jon Rahm in ninth.

Excluding the 2021 WGC Match Play, defeating Scottie Scheffler in the final, this win is his first on the PGA Tour in a regular four-round format since the 2018 Zurich Classic.

Coming into Sunday with that five-stroke lead, Horschel was determined to maintain rather than extend that margin.

"I've watched Tiger play enough, and I wasn't around when Jack was playing in his heyday, but you knew he was unbelievable at course management," he said.

"He knew how to plot his way around a golf course and learn from those two, and understand, when you have a lead, you don't have to do anything special. You've just got to make sure you don't give any shots back.

"I did give some back and I was a little upset about it, but we just put the ball on the green, two-putting, trying not to do anything special and if I had to do something special, then I was ready for it. That eagle on 15 was huge."

After months of claim, counter-claim and controversy, the LIV Golf Invitational Series turns its focus to actual golf on Thursday.

The first event of a series previously known as the 'Super Golf League' gets under way at the Centurion Club, near London, next week.

A lucrative breakaway from the PGA Tour and DP World Tour, there will be plenty of interest in how LIV Golf fares – even if it is a largely unpopular venture.

Regardless of its wider reputation, though, the money of Saudi Arabia's Public Investment Fund (PIF) has still attracted some of the sport's best players.

So, what is the deal with LIV Golf? How does it work? Who will be playing? And why has it caused such uproar?

Stats Perform attempts to answer the myriad questions around this contentious competition.

What is LIV Golf?

A Saudi-backed rival to the PGA Tour has been rumoured for years, taking on various names before finally launching as the LIV Golf Invitational Series.

Greg Norman, a two-time Open champion and LIV Golf's CEO, has described this as the arrival of "free agency" in golf, with leading players skipping PGA Tour events to play in the new series.

That is exactly what the PGA Tour sought to avoid when it vowed to ban any players who joined a rival league, although that promise has not yet come to pass.

"Our mission is to modernise and supercharge the game of professional golf through expanded opportunities for both players and fans alike," reads LIV Golf's website, adding its aim to provide "a cutting-edge entertainment product".

That does not only mean a new series and new events, but also a new format...

How does it work?

Gone is the long-established structure of 72 holes across four days with the field cut after two rounds.

Regular season LIV Golf events will last only 54 holes and three days, with no cuts, meaning – organisers point out – there is no danger of eye-catching names being absent for the end of the tournament.

There are also shotgun starts, "ensuring a faster and more exciting pace of play", and smaller fields with only 48 players.

This may all be unfamiliar, but it is at least straightforward. The other changes are a little more complex.

Players will be pursuing individual glory, as at any other golf tournament, but there are also team prizes on offer, with each field broken up into 12 four-man teams.

At every event, there will be an individual winner – the traditional victor with the lowest 54-hole score – and a triumphant team, whose score will be calculated using their best two scores over the first two rounds and their best three from the third.

The first seven events of the season – four in the United States and one each in England, Thailand and Saudi Arabia – will provide a seasonal individual champion, while the year's most successful team are then identified at a further match-play knock-out tournament.

Who's playing?

With a number of big names publicly opposing the breakaway, Rory McIlroy referred to the then Super Golf League as the "not-so-Super League" back in February.

But LIV Golf claims to have received 170 applications and has been able to recruit some superstar talent – namely Dustin Johnson, whose agent said it was "in his and his family's best interest to pursue it".

"Dustin has never had an issue with the PGA Tour and is grateful for all it has given him," David Winkle added. "But in the end, [he] felt this was too compelling to pass up."

It remains to be seen how regularly Johnson will appear in the series, given the field is set to change for every event. He is on board for the London opener, though, alongside Sergio Garcia.

With the four-man teams – who will have their own logos, colours and names – to be tweaked at each tournament, captains will draft players to join them. Unlike at the Ryder Cup, these captains are also active players.

The opening London draft is set for Tuesday, but Phil Mickelson – the most notable and controversial potential LIV Golf star – will not be involved.

Given his previous interest, Mickelson is surely likely to appear at some stage, but he has not played for several months since his comments in relation to the tournament and its funding prompted an apology.

Why's it so controversial?

Any rebel league that threatened the PGA Tour was unlikely to be globally popular, but Saudi Arabia's influence has contributed significantly to the backlash.

The country's human rights record is of major concern, along with its role in the war in Yemen, so ventures such as these – and the acquisition of Premier League club Newcastle United – by its PIF are widely cited as examples of sportswashing.

Norman has suggested Saudi Arabia is "making a cultural change".

While he described the murder of journalist Jamal Khashoggi at the Saudi consulate in Istanbul in 2018 as "reprehensible", the LIV Golf chief added: "Look, we've all made mistakes, and you just want to learn from those mistakes and how you can correct them going forward."

Norman was speaking last month, by which point Mickelson's own discussion of Khashoggi's death had done a great deal of harm to the league's reputation.

The six-time major champion acknowledged Saudi Arabia's "horrible record on human rights" but added he was willing to commit to LIV Golf as it was "a once-in-a-lifetime opportunity to reshape how the PGA Tour operates".

Mickelson made those comments in November last year, although they were reported earlier this year just as the series sought to launch.

Norman said the saga "definitely created negative momentum against us" and revealed "everybody got the jitters", causing some players to back out.

Billy Horschel shot a blistering seven-under 65 on Saturday to secure a five-stroke lead heading into the final round of the Memorial Tournament.

Horschel shot another bogey-free round on Saturday to extend his streak to 44 consecutive holes, with his last coming on the 10th hole in the first round.

One year after Jon Rahm built a six-stroke lead coming into the Sunday at the Memorial, before having to withdraw due to a positive Covid-19 test, Horschel will have a chance to see off the field with a healthy buffer.

After chipping in for birdie on the opening hole, Horschel played incisively from there as the course firmed, zeroing in on the pin and not leaving himself with much work on the greens at Muirfield Village.

The 35-year-old will be going for his seventh tournament win on the PGA Tour, with his last victory coming at the 2021 WGC Match Play, defeating Scottie Scheffler in the final.

World number three Cameron Smith commenced with a one-stroke lead on Saturday but started slowly with bogeys from the bunker on the opening two holes.

He recovered from another bogey to open the back nine to finish on even par for the round, remaining on eight-under for the tournament.

The Australian is tied for second with Aaron Wise, who steadied after a fast start on the front nine to score a three-under 68 on Saturday.

A three-way tie for third between Daniel Berger, Francesco Molinari and Jhonattan Vegas sits a further stroke back.

Meanwhile, defending champion Patrick Cantlay sits on six-under along with another four players.

Kevin Na has announced his resignation from the PGA Tour ahead of his participation in the LIV Golf Invitational Series.

Na, who is a five-time winner on the PGA Tour, posted on social media on Saturday his reasons for resigning, suggesting it was due to the Tour's attitude towards players competing in rival events.

A Saudi-backed rival to the PGA Tour had been rumoured for years before the launching of LIV Golf was recently confirmed.

Greg Norman, a two-time Open champion and LIV Golf's CEO, described it as the arrival of "free agency" in golf, with leading players skipping PGA Tour events to play in the new series.

However, the Tour has previously suggested it would ban players who joined the breakaway.

Na, who is the world number 33, was among 13 players from the PGA Tour listed as part of the field for the first LIV Golf event in London next week, along with the likes of Dustin Johnson, Lee Westwood and Sergio Garcia.

Na posted on Twitter: "For 19 years I have played on the PGA Tour and loved every minute of it. I appreciate the platform the Tour has provided me to play the game I love and for the opportunities that come with it.

"Recent developments in the professional golf world have given me a chance to reconsider my options. I would like the freedom to play wherever I want and exercising my right as a free agent gives me that opportunity.

"However, to remain a PGA Tour player, I must give up my right to make these choices about my career. If I exercise my right to choose where and when I play golf, then I cannot remain a PGA Tour player without facing disciplinary proceedings and legal action from the PGA Tour.

"I am sad to share that I have chosen to resign from the PGA Tour. This has not been an easy decision and not one taken lightly. I hope the current policies change and I'll be able to play on the PGA Tour again.

"I am thrilled to begin the next chapter in my career, starting next week at the inaugural LIV Invitational Series event in London. I hope you'll continue to support me."

The 38-year-old's last Tour win came in January 2021 at the Sony Open in Hawaii.

Cameron Smith continued his strong start to the Memorial Tournament on Friday, sitting alone atop the leaderboard on eight under after being one of three players to shoot under 70 on back-to-back days.

The Australian was in a six-way tie for the lead after round one, and pushed on well his second time around, finishing with just one bogey – on the sixth hole – which was sandwiched by birdies on the fifth and seventh.

Smith then birdied the par-five 11th, and the par-three 12th, showing his impressive touch over long and short distances, but where he really made his money was around the greens.

According to Data Golf, Smith had negative strokes-gained off the tee and with his approach shots in round two, but was second overall in strokes-gained around the greens (plus 3.55), trailing only Beau Hossler (plus 4.25). They gapped the field, with nobody else gaining more than plus 2.83 in that shot category.

Sitting one stroke off the lead is American Denny McCarthy and South Korea's Lee Kyoung-hoon, while one stroke further back at six under are round one's joint-leaders Davis Riley, Cameron Young and Luke List, along with Jhonattan Vegas and Billy Horschel.

McCarthy and Vegas joined Smith as the only players to shoot sub-70 in the opening two rounds.

Rory McIlroy headlines the group at five under in a tie for ninth, along with Francesco Molinari, still well within striking distance heading into the weekend.

A strong international group is at four under, including Canada's Mackenzie Hughes, Chile's Joaquin Niemann and South Korea's Im Sung-jae, and they are one stroke ahead of Ireland's Shane Lowry, Mexico's Abraham Ancer and American Will Zalatoris.

Jon Rahm and Corey Conners will still feel like they have a chance at two under, Max Homa and Xander Schauffele finished well inside the cut-line at one under, and Jordan Spieth shot a disappointing 74 on Friday to take an even par score into the weekend.

England's Aaron Rai – who was number one in strokes-gained off the tee on Friday – along with Australian Adam Scott finished right on the cut-line, making it through at two over, but Matt Fitzpatrick (three over) and Collin Morikawa (four over) were not so lucky.

World number three Cameron Smith headlines a six-way tie atop the Memorial Tournament leaderboard after Thursday's first round at Muirfield Village.

Smith is joined by American trio Luke List, Cameron Young and Davis Riley, as well as Canada's Mackenzie Hughes and South Korea's Lee Kyoung-hoon.

It is the largest leading group after the first round in tournament history, but they all got to their five-under 67 in different ways. 

Young finished the day second in average driving distance (316.8 yards), behind only Jon Rahm, while Lee, Hughes and Smith finished top-six in putts-per-green-in-regulation.

List was the only member of the leading group to finish with less than two bogeys, and Riley played an all-round game; top-15 in driving distance while being dialled in with his putter down the back-nine, going five-under from the 11th hole to the 17th.

US PGA Championship runner-up Will Zalatoris is part of the three-man group one stroke off the lead, while Max Homa and Canada's Corey Conners are in the logjam at three under.

A star-studded group finished with a two-under 70, including Rory McIlroy, Jordan Spieth, Xander Schauffele and Im Sung-jae, while Chile's Joaquin Neimann is with Collin Morikawa and Jason Day at one under.

Patrick Cantlay and Rahm were even-par, Mito Pereira will need a solid second round to make the cut after a one-over finish, and Hideki Matsuyama was handed his first career disqualification for using a wood with paint on its face – deemed illegal. He was three over at the time of the incident.

English golfer Eddie Pepperell claims stars who sign up for the LIV Golf Invitational Series are making it obvious "what money means to you".

Former world top-50 star Pepperell says many players are taking "a big risk" by aligning themselves with the series that is being funded by Saudi Arabia's Public Investment Fund.

Former U.S. Open and Masters champion Dustin Johnson, 37, is among the 42 confirmed entrants for the first event, which will be held at Centurion Club near London from June 9-11.

Sergio Garcia, Kevin Na, Louis Oosthuizen, Ian Poulter, Charl Schwartzel, Graeme McDowell and Lee Westwood are also set to feature in a tournament that will have 12 teams and 48 players.

There have been claims of the event being an attempt at sportswashing, and while Pepperell did not level that accusation, he suggested a lust for money had to be the prime motivation for players who have gone against the wishes of the PGA Tour and European Tour by agreeing to take part.

"From a ROI [return on investment] perspective, the field for the first LIV event is awful," Pepperell wrote on Twitter. "Obviously they're banking on that changing over time. You have to wonder how long they'll keep pouring that amount of money into this if that change doesn't come quickly.

"Plus, deteriorating financial conditions across the world may have an impact. Nobody will be impervious to what we're seeing and what we'll continue to see economically into the next 18 months.

"The players who have signed up should be upfront and honest about their reasons to do so. And it has to be the money. There's nothing wrong with chasing money or higher salaries, people do it across all industries.

"It's somewhat understandable from the older guys… But to those under 35/40 who have signed up, you have taken a big risk. And it shows to the rest of us (peers included) how little commitment you have to your respective Tours (who have done a lot for you), and ultimately what money means to you."

The inaugural tournament clashes with the Canadian Open on the PGA Tour, an event at which Johnson is a previous winner.

Rory McIlroy described the Canada event and this week's Memorial Tournament as "proper golf tournaments" on Wednesday, as he reflected on the LIV Series line-up.

"I certainly don't think the field is anything to jump up and down about," McIlroy said of the Centurion Club tournament.

Northern Irishman McIlroy has tempered his comments on the LIV Series in recent months, having previously been robust in his opposition.

He understands its appeal to some, but has been quite clear he will not be taking part.

"Some guys are in a position where they are not guaranteed a job next year. It's hard to stay in the top 125, especially when you're in your 40s and maybe don't hit the ball as far as you've used to. As we've seen, it's a young man's game nowadays," McIlroy said.

"So if another entity comes along and says, 'we'll guarantee you this amount for three years', plus you're playing for a ton more prize money, you're playing fewer events and you can spend more time with your family it's very appealing to some of those guys that are in that position."

Phil Mickelson had long been linked with the LIV Series, but the 51-year-old has not played since apologising for comments made about the Saudi Arabia regime and has not been included on next week's start list. The American said in February he was taking a break from golf and did not defend his US PGA Championship last month.