Roger Federer was impressed by Alexander Zverev's cool-headed approach as the German claimed a dramatic Shanghai Masters quarter-final win.

While the usually serene Federer lost his temper and suffered a point deduction in the deciding set after hitting a ball into the crowd in frustration, Zverev proved far more focused.

That served him well when, having squandered five match points in the second set, Zverev dusted himself down to win the third and seal a 6-3 6-7 (7-9) 6-3 victory.

Despite his own evident dissatisfaction, Federer had some kind words for his opponent after a fiery contest.

"I told him at the net that he showed great character, that he was strong," said the 20-time grand slam champion.

"I thought he didn't show any frustrations or too much negativity. I didn't see him very often being extremely frustrated except the one time when he hit three let cords in a row, the last game I think it was.

"That was impressive, because he has tendencies to get a bit down on himself, especially this season he hasn't been playing maybe so well, so that impressed me the most. 

"If I can get one per cent of that, I'm happy, too."

Matteo Berrettini is up next for Zverev, who reflected on a remarkable end to the second set, when he was on the brink of a far more straightforward success.

"Obviously I had three [match points] on my serve and two more in the tie-break," he said. "I played great tennis and didn't do unforced errors or anything like that.

"I knew if I keep playing the way I was playing in the first two sets I was going to have a chance in the third as well.

"I don't think Roger Federer's game suits anybody to be honest. He is the greatest player of all time. He will always find a way and make it tricky for you like he did with me.

"You have always got to play your best tennis to have a chance."

Novak Djokovic and Roger Federer both suffered quarter-final exits at the Shanghai Masters on Friday, guaranteeing a first-time winner of the tournament this year. 

The top two seeds were widely expected to contest the final but succumbed to Stefanos Tsitsipas and Alexander Zverev respectively.

Daniil Medvedev and Matteo Berrettini also secured their progress to settle the semi-final line-up in China.

And there was an added bonus for Tsitsipas as he claimed a spot at the ATP Finals. 

DJOKOVIC DOWNED BY TSITSIPAS' 'BEST COMEBACK'

Tsitsipas recovered from a set down to beat reigning champion Djokovic 3-6 7-5 6-3 and labelled it his "best comeback".

The Greek will now face Medvedev in the last four, having earned an end-of-season Finals spot courtesy of the Russian's 6-3 7-6 (7-4) win over Fabio Fognini.

"It's the best comeback that I have ever had, probably," said Tsitsipas.

"I would say also [the] Federer comeback in the Australian Open wasn't easy. I lost the first set against one of the best tennis players in the world and managed to win three consecutive sets after that.

"Same today, but with less sets, two sets, which was quite difficult for me to pull out. It was a very difficult victory mentally, too.

"I wasn't really thinking that long term that I have to win two sets. It just went step by step. It happened."

FRUSTRATED FEDERER FALLS TO ZVEREV

Federer is usually a picture of calm on the tennis court, but he was evidently ruffled in his 6-3 6-7 (7-9) 6-3 loss to Zverev.

The Swiss, who rescued five match points to win a remarkable second set, was docked a point in the fourth game of the decider after hitting the ball into the crowd in anger.

His frustration may have stemmed from an inability to find his rhythm against an inspired Zverev, who was 40-0 up when serving for the match in the second set.

Having seemingly thrown his chances away, Zverev dug deep and broke Federer at the first opportunity in the final set to claim an advantage he refused to surrender. 

Berrettini awaits, the Italian having overcome Dominic Thiem 7-6 (10-8) 6-4.

Heather Watson continued her surprise run at the Tianjin Open by beating Magda Linette to reach the semi-finals after saving four match points on Friday.

The Brit had not won a hard-court match on the WTA Tour for over a year before this week, but is two wins away from being crowned champion after a 7-5 6-7 (4-7) 7-6 (8-6) victory over the eighth seed.

World number 125 Watson was taken the distance after seeing a match point come and go in the second set and forced a tie-break after Linette had four chances to wrap up the quarter-final.

The unseeded Watson eventually prevailed by securing a ninth mini-break in the final set and will face Veronika Kudermetova in the last four.

Russian Kudermetova toppled third seed Dayana Yastremska 6-4 6-0 in a battle of heavy hitters.

There will be no seeds in the semi-finals after Ons Jabeur defeated Yulia Putintseva 7-6 (7-5) 7-6 (7-4). 

Jabeur will come up against Rebecca Peterson with a place in the final at stake following the Swede's 6-7 (5-7) 6-4 6-2 success against home hope Wang Yafan.

Alexander Zverev ended a frustrated Roger Federer's hopes of a third Shanghai Masters title as he claimed a stunning 6-3 6-7 (7-9) 6-3 quarter-final triumph.

The German took his head-to-head record against the 20-time grand slam champion to 4-3 with a display of immense quality and huge character. 

Federer, winner of the title in 2014 and 2017, frequently showed his displeasure and repeatedly argued with the umpire, even landing a point penalty after hitting the ball into the crowd in anger.

But his unrest was largely down to the brilliance of Zverev, who defiantly overcame the setback of missing out on five match-point openings in the second set.

The result came after reigning champion Novak Djokovic had already been dumped out by Stefanos Tsitsipas.

It was Zverev who forged ahead, seizing on a break-point opening that came after a stinging forehand return winner.

He then confidently held serve for a 5-2 lead as Zverev continued to look the more settled of the two, a fact further underlined when he served out the final game of the set to love.

Federer offered a swift riposte at the start of the second set, clinching a break after settling a lengthy rally with a deft drop shot that Zverev could only lob wide on the stretch. 

But Zverev refused to wilt and, showing remarkable power and accuracy to dictate matters from the baseline, he clawed his way back to level terms. 

Serving at 5-5, Federer failed to land a first serve and found an inspired Zverev on the other side of the net, the 22-year-old battling hard to stay in a point that he ended up winning with a glorious, laser-like forehand down the line.

Federer produced his best tennis at 40-0 down, rescuing himself from the brink with a series of inspired shots to force a tie-break in which he survived two more match points before levelling things up.

To Zverev's credit, he was soon back on the offensive and raced into a 3-0 lead in the decider, dropping only two points in the process.

He clung fiercely to that advantage against an uncharacteristically irritable Federer, who was docked a point in game four after striking a ball away in anger, having already been warned for doing so earlier.

Despite saving the two break points that resulted from that penalty, there was no way back for Federer as Zverev sealed a memorable win in a contest lasting more than two hours. 

An inspired Stefanos Tsitsipas came from a set down to end Novak Djokovic's reign as Shanghai Masters champion and reach the semi-finals after qualifying for the ATP Finals.

Daniil Medvedev's 6-3 7-6 (7-4) victory over Fabio Fognini sealed Tsitsipas' spot in the season-ending tournament in London for the first time and the 21-year-old capped a memorable Friday by beating Djokovic 3-6 7-5 6-3.

The sixth seed won his first encounter with the world number one at the Rogers Cup last year and gained revenge for a defeat in their second meeting in Madrid this season, having also beaten Roger Federer and Rafael Nadal in 2019.

Four-time champion Djokovic was denied back-to-back titles after his Japan Open Tennis Championships triumph last weekend as Tsitsipas struck 34 winners in a pulsating quarter-final in Shanghai, setting up a last-four contest with Medvedev. 

Djokovic was 3-0 up after only seven minutes in a blistering start and lost just one point in his first three service games.

Tsitsipas had a first break-point opportunity in the seventh game, but the 16-time grand slam champion prevented the world number seven from getting back on serve and took the opening set in just over half an hour.

Djokovic got himself out of trouble to level at 3-3 in the second set after drilling a forehand long to gift his opponent a couple of break points.

Tsitsipas, runner-up at the China Open last week, continued to put the Serbian under pressure, though, and got the elusive break to level the match as he continued to unleash winner after winner.

One of 26 unforced errors from Djokovic gave Tsitsipas, who produced an array of searing backhand and forehand winners, three break points and he grasped the opportunity to take a 3-1 lead in the third before going on to seal his place in the penultimate round.

Kiki Bertens overcame an early stumble to power through to the quarter-finals of the Linz Open on Thursday.

Top seed Bertens looked to be in trouble in the last 16 in Austria when she lost the first set to Belgian Alison Van Uytvanck, who won the Tashkent Open a fortnight ago.

But Dutch world number eight Bertens, who had been broken in the opening game of the match, did not drop serve again and forced a 4-6 6-3 6-3 victory.

Lucky loser Coco Gauff, playing a WTA Tour quarter-final for the first time, will be her opponent on Friday, having also reached the doubles semi-finals alongside fellow American Caty McNally on Thursday.

Fifteen-year-old Gauff secured her singles last-eight place on Wednesday when defeating Kateryna Kozlova.

Fourth seed Donna Vekic could not join Bertens in the next round, as the Croatian claimed the opening set but went down 3-6 6-1 6-2 to French opponent Kristina Mladenovic.

This was the pair's third meeting in 2019 and, having lost the first two, Mladenovic finally took flight.

Anastasia Pavlyuchenkova was another on the wrong end of an upset as the ninth-seeded Russian similarly let an early lead slip, beaten 2-6 6-2 6-4 by Slovakian Viktoria Kuzmova.

Russia's Ekaterina Alexandrova showed greater spirit after being pegged back, seeing off German Laura Siegemund in three, while French player Alize Cornet retired as she trailed Latvian Jelena Ostapenko in the second set.

Teenager Coco Gauff has been promoted to the Luxembourg Open main draw after Angelique Kerber and Maria Sharapova pulled out with injuries.

Kerber is suffering with a leg injury while Sharapova has a shoulder problem, depriving next week's WTA event of two of its biggest names.

But the news means Gauff enters the competition proper, without needing to qualify, along with regular doubles partner Caty McNally.

Gauff, just 15, burst onto the scene at Wimbledon as she reached the fourth round, before impressing again at the US Open, her home grand slam, by winning two matches.

In her first appearance since Flushing Meadows, playing as a lucky loser, Gauff has reached the quarter-finals of Linz Open and will break into the world's top 100 next week.

She plays top seed Kiki Bertens on Friday for a place in the last four.

Novak Djokovic and Roger Federer face tricky quarter-final matches at the Shanghai Masters on Friday after the star pair battled through to the last eight.

World number one and defending champion Djokovic defeated John Isner 7-5 6-3, while second seed Federer got the better of David Goffin, earning a 7-6 (9-7) 6-4 success.

Djokovic goes on to tackle Stefanos Tsitsipas, who overcame a significant scare as he beat Hubert Hurkacz 7-5 3-6 7-6 (7-5), with Alexander Zverev up next for Federer.

German Zverev threatened to blow Andrey Rublev away after a first-set rout, but he was then made to work hard to come through 6-0 7-6 (7-4).

Daniil Medvedev, the third seed, and Dominic Thiem, the fourth seed, both won in straight sets, seeing off Vasek Pospisil and Nikoloz Basilashvili respectively.


DJOKOVIC SERVES UP A TREAT

The top seed was speaking of the threat of Isner's famous serve from the moment their last-16 clash was booked and continued to do so after his win.

But Djokovic also managed to execute his own serve as effectively as he had hoped, complementing his typically excellent defensive game to get through.

"I managed to kind of read his serve and find a good position on the return - at the end of the first set and also the beginning of the second," the Serbian said.

"I won five games in a row and that was the key - obviously having a break each set, and then I held my serve. I thought it was one of the best serving matches I've had lately."


FEDERER FLUSTERED BUT THROUGH

If Djokovic performed better than he might have expected, Federer was a little taken aback by the level of opponent Goffin, whom he thrashed in straight sets for the loss of just four games at the US Open.

"I never really felt like I had the upper hand over David today," Federer said. "I thought he did a really good job. He was so much better than at the US Open."


STILL TWO MINOR UPSETS

The top eight seeds would have made up the quarter-final line-up if not for wins by Italians Fabio Fognini and Matteo Berrettini.

Fognini, the Monte Carlo champion who made headlines for a spat with Andy Murray earlier in the week, defeated Russian Karen Khachanov 6-3 7-5.

Berrettini, who lost to Murray last week, a month on from reaching the US Open semi-finals, got the better of Roberto Bautista Agut, tying up a 7-6 (7-5) 6-4 victory.

Fognini faces Medvedev next, with Berrettini up against Thiem.

Roger Federer conceded he had more than his fair share of good fortune in his Shanghai Masters win over David Goffin.

The Swiss maestro battled to a 7-6 (9-7) 6-4 triumph on Thursday to reach the last eight in China.

Federer saved five set points in the opener and sealed the second set after a solitary break of Goffin's serve.

"It was tough," said the 20-time grand slam champion. "He served for the set at 6-5. We both had chances but he probably had a few more I must admit.

"I had to play some very accurate shots and it went very close to the lines. They could easily have gone another way, I know that.

"I was a bit fortunate to win that first set but I played okay and I fought extremely hard.

"Sometimes it falls your way. I have had a good season and served well at the end.

"The first set was certainly crucial to put me in the lead."

The world number three will face Alexander Zverev in the quarter-finals.

Roger Federer was pushed to the limit by David Goffin as the world number three battled through to the quarter-finals of the Shanghai Masters.

Backed by vociferous support from the crowd, Federer was firmly tested by Goffin but the 38-year-old eventually came out on top 7-6 (9-7) 6-4 on Thursday.

While fellow favourite Novak Djokovic cruised through his tie with John Isner, Federer was far from at his sharpest, with world number 14 Goffin capitalising on some rusty play from the veteran in the opening set.

Goffin squandered a break point as Federer laboured to a hold of serve in the third game, though the Belgian had to save a set point at 4-5 down.

The momentum seemed to have swung in Goffin's favour when he broke to take a 6-5 lead but the second seed responded in style, forcing the tie-break with a delicate lob at the culmination of a thrilling rally.

An arduous first set was finally settled after Goffin failed to land a shot down the line - Federer planting a firm cross-court forehand to clinch the lead. 

Both players passed up break points throughout the early exchanges of another attritional set, though Federer took the upper hand when Goffin sent a weak effort into the net.

With Federer holding the next game with ease, Goffin served brilliantly to stay in the match.

It was to no avail, though, a cushioned drop shot setting the 20-time grand slam champion up to serve out a hard-fought victory with an ace.

Heather Watson reached a WTA Tour quarter-final for the first time in over a year as she defeated Tianjin Open favourite Wang Qiang to set up a clash with Magda Linette.

The Briton - ranked 125th in the world - cruised to a 6-3 6-0 triumph over Wang to claim her first win against a top-30 opponent since she defeated Anastasija Sevastova at Wimbledon in 2017.

Korea Open finalist Linette, who last month beat Watson in qualifying for the China Open, awaits in the 27-year-old's first last-eight outing at this level since Quebec in September 2018, with the Pole having progressed when Kurumi Nara retired at 4-0 down.

Peng Shuai, meanwhile, proved little match for third seed Dayana Yastremska, who eased through 6-2 6-4.

Yastremska, now the highest-seeded player left in the competition, will face Veronika Kudermetova in the last eight, with Zheng Saisai retiring against the Russian.

Novak Djokovic outclassed John Isner as he progressed into the quarter-finals of the Shanghai Masters with a 7-5 6-3 victory.

Defending champion Djokovic was flawless at times on Thursday in a clinical display, controlling Isner's powerful serve.

Djokovic noted he had been nursing a shoulder injury heading into the tournament, though the Serbian showed no sign of a struggle with fitness as he wrapped up a 350th ATP 1000 career win with the minimum of fuss.

It did take Djokovic until the final game of a 42-minute first set to break his opponent and, with three set points to play with, he made no mistake when he drew Isner into an overhit backhand.

That came amid a run of nine successive points for Djokovic, who swiftly hit the front in set two as he looked to snuff out any lingering chances of a  fightback from the American.

Another break followed as Djokovic raced three games clear and, though Isner regained some composure to stem the tide, he was no match for the top seed's unerring serve.

Isner positioned himself for a break when he drew back to 30-30 in the seventh game, his resolve was quickly broken by more supreme serving.

Despite a brilliant, cushioned backhand from Djokovic, Isner held his nerve to stay in the match on his next serve.

But it merely staved off the inevitable - the world number one, who is aiming for a fifth title of 2019 and will face Hubert Hurkacz or Stefanos Tsitsipas in the last eight, serving out a dominant triumph with the first of three match points.

Coco Gauff reached her first WTA Tour quarter-final when Kateryna Kozlova retired in the final set of their Linz Open contest on Wednesday and could face top seed Kiki Bertens in the last eight.

Gauff, a lucky loser following Maria Sakkari's withdrawal, was leading 4-6 6-4 2-0 when her Ukrainian opponent was unable to continue due to a leg injury.

The 15-year-old American won four of the next five games from a break down at 3-2 in the second set with great fighting spirit and is set to move into the top 100 after her passage in the quarter-finals was secured.

Gauff is the youngest player to move into the last eight of a WTA event since Sesil Karatancheva back in 2005.

The teenage prodigy said: "It's been a goal of mine. In January of this year, I sent a message to my friend saying I wanted to finish Top 100, and at the time I was ranked, like, 800, so it was a far-fetched goal, but I'm glad that I was able to accomplish it.

"My other goal was to get in the main draw of two grand slams, and that happened, so I'm glad that I accomplished everything that I wanted this year."

Bertens, in contention to feature in the WTA Finals, saw off Misaki Doi 6-4 7-5 to set up a second-round meeting with Alison Van Uytvanck.

The world number eight broke twice in each set to stay in the hunt for a third title of the year as she bids to secure a place in the season-ending tournament in Shenzhen.

Andrea Petkovic won an all-German second-round match against fifth seed Julia Goerges 7-6 (7-2) 6-0, while Elena Rybakina denied Anna-Lena Friedsam a place in the quarter-finals.

Anastasia Pavlyuchenkova, Jelena Ostapenko and Ekaterina Alexandrova were first-round winners on day three.

Novak Djokovic was buoyed by his display in Wednesday's 6-3 6-3 victory over Denis Shapovalov at the Shanghai Masters.

The reigning champion overcame a potentially tricky first obstacle in his pursuit of a fifth title at the event, getting the job done in an hour and 10 minutes.

Djokovic dropped just one point on serve in the first set as he secured a last-16 clash with John Isner.

"From the beginning I was sharp, I brought the right intensity and focus on the court," said the Serbian.

"Obviously Denis has played a match before here and won it, and conditions are played fast so I think it is quite suitable to his style of the game. Big serve, big forehand.

"I was constantly there in his return games but he was just managing to pull out some great shots, especially with the serve.

"It was a crucial break, I think, at 3-2, first set. It kind of allowed me to start swinging through a bit more and stepping into his second serve.

"Second set was great, he started off much better with some break points. I was lucky to save those. Just overall a really good performance and I am very pleased."

Djokovic won the Japan Open last time out and has opted to combine his bid for singles glory with a shot at the doubles crown in China.

He and compatriot Filip Krajinovic face Jamie Murray and Neal Skupski on Thursday, with Djokovic's Isner showdown also on the agenda.

"I'm excited for both matches," he said. "Obviously John has one of the best serves in the history of tennis, so he can beat anybody if he is serving big and feeling well from the baseline and volleying well.

"I think the key is obviously how many serves I can get back in play. The more I do that, the better chance I have."

Novak Djokovic overcame Denis Shapovalov to book a Shanghai Masters last-16 spot as he made an impressive start to his defence of the title.

The Serbian wrapped up a 6-3 6-3 victory as he bids for a fifth trophy success at the event, where he will face John Isner next.

Isner, seeded 16th, beat Lucas Pouille 7-5 6-3, while Dominic Thiem also progressed to the next round courtesy of a 7-6 (7-3) 6-3 victory over Pablo Carreno Busta.

That was the final match on court and rounded off a day in which all 10 clashes were decided in two sets.

DOMINANT DJOKOVIC SOUNDS WARNING TO RIVALS

Shapovalov played well but could not keep pace with his illustrious rival across the net, Djokovic dropping only one point on serve in the first set.

No man has won more titles at this event than Djokovic and, on this evidence, he will be adding to his tally.

Djokovic was deadly accurate and coasted through his service games, dictating rallies and offering almost no hope to his Canadian opponent.

Even when Shapovalov upped his game on serve, Djokovic produced a string of superb returns to maintain the ascendancy.

In the other half of the draw, fourth seed Thiem battled past Carreno Busta as the Austrian advanced his claims for a second Masters win of 2019, having won at Indian Wells. 

The Austrian saved three set points in the opener and took control of the tie-break before settling matters in a more comfortable second set. 

TSITSIPAS, ZVEREV AVOID TIE-BREAK TROUBLE

A straight-sets win may always seem simple on paper, but Stefanos Tsitsipas and Alexander Zverev were both made to work hard for their victories.

The pair were each taken to consecutive tie-breaks, the Greek defeating Felix Auger-Aliassime 7-6 (7-3) 7-6 (7-3), while Zverev was pushed further still in a 7-6 (15-13) 7-6 (7-3) success against Jeremy Chardy.

Sixth seed Tsitsipas, who has won in Estoril and Marseille this year, will be favourite to overcome Hubert Hurkacz for a spot in the quarter-finals.

Zverev, seeded one place higher than Tsitsipas, faces Andrey Rublev as the German goes in search of a fourth Masters title.

 

SEEDS SAIL THROUGH 

Four other seeded players enjoyed straight-sets wins, with Karen Khachanov, Roberto Bautista Agut, Matteo Berrettini and David Goffin securing their progress.

Khachanov beat Taylor Fritz 6-2 6-4, Bautista Agut – runner up in 2016 – defeated Reilly Opelka 6-4 7-5 and Berrettini was a 6-3 6-3 winner over Christian Garin.

Goffin was 6-2 3-0 up against Mikhail Kukushkin when the Kazakhstani retired hurt.

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