Robert Lewandowski has his work cut out to match Gerd Muller's Bundesliga goals record but Bayern Munich will do all they can to make it happen, Hansi Flick has said.

Muller hit 40 goals for Bayern in the 1971-72 season, a mark that is firmly in the sights of Lewandowski after he began the campaign with 22 goals in Bayern's first 17 games.

Speaking ahead of Bayern's trip to face Schalke on Sunday, in a clash of the top and bottom teams in the German top flight, Flick spoke of how he used to idolise the legendary Muller.

As leaders Bayern pursue a ninth consecutive Bundesliga title, the prospect of Lewandowski challenging Muller is drawing plenty of attention, and Flick indicated the team would love it to happen.

"Gerd Muller was my role model," said Flick. "Unfortunately, I've never scored as many goals as he did, I wasn't as lethal, maybe at the beginning in the youth teams.

"He was a striker who was always ready to accept balls outside the box and you could combine together with him. He was wonderful in front of goal.

"For Robert to have scored more goals than him in the first half of the season shows his quality and that the team keep supporting him to end up in situations where he can score goals.

"I think about the 1-0 against Freiburg, which was a genius attacking move via Serge Gnabry and Thomas Muller, who immediately passed the ball to him. Their alignment was perfect.

"We all know, and Robert knows this too, that a lot of things need to be in place to continue like this. We're working on it.

"We have to support Robert and he is important to the team. He has certain tasks within the team and if he does them well, it is easier for the team to assist him at goalscoring.

"I would wish he could manage 40 but Gerd Muller is really something special."

Muller is suffering with Alzheimer's disease and is said to be living in a nursing home.

"We all know how Gerd Muller is doing, that also makes you sad," Flick said.

Bayern will face a Schalke team who are showing flickers of life at the foot of the table, and who brought Klaas Jan Huntelaar back to the club this week from Ajax.

Huntelaar, at the age of 37 and ready to retire at the end of the season, has rejoined Schalke because he could not bear being unable to help them in the battle to avoid relegation.

He previously had a seven-year spell with the club and, much like Lewandowski, has a proven nose for goal.

The veteran Dutch striker could have a role to play this weekend, with Schalke coach Christian Gross saying on Friday: "I think that Klaas Jan will be part of the squad against Bayern. He's a good option for the bench."

Robert Lewandowski was brought off in the second half of Bayern Munich's edgy 1-0 victory against Augsburg as a precaution, head coach Hansi Flick confirmed.

Lewandowski scored the 13th-minute penalty that ultimately secured the three points for Bundesliga champions Bayern at the Augsburg Arena on Wednesday.

However, superstar striker Lewandowski was substituted after 67 minutes and Bayern were left grateful for a spot-kick miss from Alfred Finnbogason midweek.

Flick explained the surprising decision was because Lewandowski has been managing an issue with his thigh.

"[It was] to be on the safe side because Robert is very important to us. We didn't want to take any risks," Flick said in quotes reported by SID.

"He already said this morning that he could feel something in the thigh muscles on the back, but [he felt] that he could control it quite well."

Bayern were brilliant in the opening period but struggled in the second half in a theme of only playing well in patches that has become rather familiar in recent weeks.

Back-to-back wins and a first clean sheet since October followed a loss to Borussia Monchengladbach and a shock DFB-Pokal exit to second-tier Holsten Kiel, with Bayern's performances well below their best.

Flick, though, said even a team like Bayern – who won a superb treble in 2019-20 – can hit a "limit" in what has been a testing period.

"The team played an outstanding year, at some point they too are at their limit," he added to Sky Germany, with Bayern four points clear atop the table. 

"It was a bit of luck against Freiburg in the end, but very important. We [wanted] to add more today and take three points with us to Munich."

Bayern Munich's luck was in as a story of two penalties was the main tale in their 1-0 win over Augsburg in Tuesday's Bundesliga contest.

Robert Lewandowski calmly slotted home from the spot after 13 minutes at Augsburg Arena and missed a glut of chances in a first half dominated by the champions.

It was a completely different outlook for Bayern after the break, though, and Hansi Flick's side were left breathing a sigh of relief when Alfred Finnbogason struck the post with a penalty of his own 15 minutes from time.

The end result means Bayern remain four points clear at the top but Flick will want to see fewer of the Jekyll-and-Hyde performances that have been on display in recent weeks from his side.

Rani Khedira's clumsy kick on Lucas Hernandez allowed Lewandowski to find the bottom-right corner with a cool 13th-minute penalty that looked like setting the tone for a dominant win.

Serge Gnabry was denied by the busy Rafal Gikiewicz and Thomas Muller put the rebound narrowly wide as Bayern peppered the hosts' goal.

Gnabry was kept out again by Gikiewicz before teeing up Lewandowski, who was guilty of wastefulness a couple of times, with the Pole only hitting the outside of the post with the goal gaping.

A second half completely at odds with the first saw Bayern struggle to create openings and Daniel Caligiuri's long-range effort would have briefly had away hearts in mouths before rising comfortably over.

There was an even greater left-off shortly after when substitute Finnbogason fluffed his lines from the spot after Benjamin Pavard had been pinged for handball from Iago's flick in the area.

Muller had the ball in the net but Jamal Musiala clearly ran the ball out in the act of setting him up, before Florian Niederlechner skewed wide and Felix Uduokhai headed over in further late scares that a lacklustre Bayern ultimately survived.

Robert Lewandowski became the first player to hit 21 goals in the first half of a Bundesliga campaign with his opener for Bayern Munich against Freiburg.

Gerd Muller previously held the record of 20 goals, with the Bayern great having achieved the feat in 1968-69.

Lewandowski matched that haul on January 8, scoring in a 3-2 defeat to Borussia Monchengladbach.

On Sunday, in Bayern's 16th league game of the 34-match campaign, the 32-year-old overtook Muller by slotting home at the culmination of a superb Bayern move in the seventh minute.

It also brought up Lewandowski's fifth goal in his last four games against Freiburg.

Prolific in attack, it is at the other end where Hansi Flick's Bayern side have struggled this season.

Heading into Sunday's game at the Allianz Arena, the Bavarian side had 33 points – they last had as many points after 15 matches in 2017-18 - yet their 24 goals conceded after 15 fixtures was more than in any season since 1981-82 (25).

Lewandowksi scored 34 times in the league last season, six shy of Muller's Bundesliga record of 40 (1971-72), but the Poland star now looks well on course to challenge that tally.

Robert Lewandowski has paid tribute to Jurgen Klopp for the impact he had on the striker's path to being crowned the best player in the world last month.

Bayern Munich star Lewandowski won The Best FIFA Men's Player award for 2020 after starring as Die Roten claimed a Bundesliga, Champions League and DFB-Pokal treble.

Between July 20, 2019 and October 7, 2020 – the period considered for the award – Lewandowski scored 60 club goals in 52 appearances across all competitions at a rate of one every 76 minutes.

He beat Lionel Messi and Cristiano Ronaldo to the prize, with the Pole effectively recognised the best footballer in the world in the absence of a Ballon d'Or winner in 2020.

Lewandowski has enjoyed immense success since joining Bayern in 2014, though he already looked destined for greatness during his time at Borussia Dortmund, where Klopp had begun to mould him into the lethal forward he is now.

Writing in a reflective piece for the Players' Tribune in the wake of his FIFA award win, Lewandowski said of the current Liverpool boss: "Jurgen was not only a father figure to me. As a coach, he was like the 'bad teacher'. And I mean that in the best sense of the word.

"Not the one who made life easy for you and never expected anything from you, but the one who was strict with you. The one who put pressure on you and did everything to get the best out of you. That's the teacher who made you better. Jurgen was like that.

"He was not content to let you be a B-grade student. Jurgen wanted A+ students. He didn't want it for him. He wanted it for you.

"I could talk to Jurgen about anything. I could trust him. He is a family man, and he has so much empathy for what goes on in your private life."

Lewandowski took a season to truly adapt to German football after joining from Lech Poznan in his native Poland, as he only netted eight Bundesliga goals in 33 games during the 2010-11 campaign.

That remains the only season he has failed to reach double figures for league goals during his time in Germany, and Lewandowski considers Klopp's influence to be a major part of his improvement.

"He taught me so much," the striker continued. "When I arrived at Dortmund, I wanted to do everything quickly: strong pass, one touch only. Jurgen showed me to calm down — to take two touches if necessary.

"It was totally against my nature, but soon I was scoring more goals. When I had that down, he challenged me to speed it up again.

"One touch. BANG. Goal. He slowed me down to speed me up. It sounds simple, but it was genius, really."

Lewandowski's shot conversion rate rose from 13.1 per cent to 22.5 after his first season with Klopp and has never dipped below 20 per cent since.

In fact, the 32-year-old appears to be getting better with age, given his best ever return in terms of shot conversion was posted last term (29.8), and he is well on track to obliterate that personal best in 2020-21.

With 20 goals in 14 Bundesliga games, the Polish marksman is converting 44.4 per cent of his opportunities.

Jonas Hofmann played a pivotal role as Borussia Monchengladbach incredibly came from two goals down to defeat Bundesliga champions Bayern Munich 3-2 on Friday.

Robert Lewandowski scored his 20th top-flight goal of the season from the penalty spot after an inexplicable handball from Florian Neuhaus, and Leon Goretzka had Bayern cruising at Borussia-Park in the 26th minute.

However, Hofmann struck twice in the space of 10 minutes to send the teams into half-time level and Neuhaus atoned for his earlier error with what proved to be the winner in the 49th minute.

Gladbach consequently became the first team since Cologne in February 2011 to defeat Bayern in the Bundesliga after falling 2-0 down.

Lewandowski put Bayern in front from the penalty spot following a bizarre handball by Neuhaus, though referee Harm Osmers only pointed to the spot after a VAR check.

Bayern doubled their advantage six minutes later, Goretzka intercepting Matthias Ginter's pass and drilling a venomous effort past Yann Sommer after a one-two with Leroy Sane.

Gladbach reduced the deficit when Rami Bensebaini regained the ball high up the pitch and a quick passing move ended with Hofmann sliding Lars Stindl's throughball past Manuel Neuer.

The hosts drew level in first-half stoppage time when Stindl dispossessed Joshua Kimmich and fed Hofmann for another cool finish - the VAR confirming he was onside when the pass was played.

Gladbach completed the turnaround four minutes after the restart, Hofmann intercepting Niklas Sule's pass and teeing up Neuhaus to curl a wonderful effort into the top-right corner.

Marco Rose's men sat deep and Ginter cleared a header from Sule off the line in the 91st minute, opening the door for RB Leipzig to replace Bayern at the Bundesliga summit if they can beat Borussia Dortmund in a mouthwatering clash on Saturday.

What does it mean? Worries at the back for Flick

Bayern's defensive struggles continued against Gladbach, with Neuer now on a 10-game run without a clean sheet in the Bundesliga for the first time in his career.

He was not helped by Benjamin Pavard giving away possession prior to Hofmann's first, while Sule played a role in allowing the other two Gladbach goals.

Securing the future of David Alaba, who will be out of contract at the end of the season, never seemed quite so important.

Having it Lars

Most teams would think the game is beyond them when falling 2-0 down to Bayern, but Gladbach captain Stindl led by example to turn the game around. He set up both of Hofmann's goals with a pair of quality passes and contested 11 duels before being substituted in the 82nd minute.

Sluggish Sule

Sule replaced Jerome Boateng in the centre of defence but endured a disappointing outing. He played Hofmann onside for the equaliser just before half-time and within minutes of the restart his stray pass resulted in Neuhaus putting Gladbach in front.

What's next?

Bayern are in DFB-Pokal action against 2. Bundesliga side Holstein Kiel on Wednesday, while Gladbach have a week to prepare for a Bundesliga clash with Stuttgart.

Erling Haaland should follow the example of Robert Lewandowski and stay at Borussia Dortmund until he is "world class", according to Hans-Joachim Watzke. 

Striker Haaland has been a revelation since joining the Bundesliga club, scoring 16 goals in the second half of the 2019-20 season following his January arrival from Salzburg.

The Norway international has continued to be prolific during the current campaign – he has 17 goals in 15 appearances in all competitions – and, unsurprisingly, that has led to speculation he could leave in the near future.

Josep Maria Minguella, advisor to Barcelona presidential candidate Emili Rousaud, had claimed a deal was lined up to take the 20-year-old to Camp Nou if they triumph in the upcoming election. 

However, Mino Raiola – Haaland's agent – rejected the claim, and Dortmund CEO Watzke has urged the player to remain at his current club until ready for the next step.

"Erling and Mino Raiola know what they have in us. I can only advise him to do it like Robert Lewandowski," Watzke told Kicker.

Lewandowski had four successful seasons with BVB – including winning the Bundesliga title twice – before moving on to Bayern Munich in 2014, by which time he had established himself as one of the leading strikers in the game.

Watzke believes Haaland can "mature into an absolute world-class player in Dortmund", with the club aware that – eventually – the talented forward will likely want to move on elsewhere.

He added: "It is clear that if Erling should leave us at some point, he will only go to an even bigger club, so many are not considered. 

"If you go to a club like - just to name an example - Real Madrid, you have to be world class."

Haaland was injured prior to the mid-season break in Germany but was back in action on Saturday, playing 81 minutes of Dortmund's 2-0 win over Wolfsburg.

He is averaging an impressive 1.23 goals per 90 minutes in the Bundesliga this term, though that is still behind Lewandowski (1.57), who has scored 19 in 13 appearances for the reigning champions.

That works out as a goal every 57 minutes for the Poland international, whose shot conversion rate (66 per cent) is also slightly better than Haaland's mark of 59 per cent. They are the only duo to reach double figures for goals in the competition so far this season, Andre Silva and Wout Weghorst next on the list with nine.

Bayern Munich came from behind for an eighth successive Bundesliga match as the champions overcame struggling Mainz 5-2 at Allianz Arena.

Hansi Flick's side have not taken the lead in a league game since October and might have been staring down the barrel of a second defeat of the season had Danny Latza beaten Manuel Neuer early in the second half.

Mainz had a 2-0 lead at that stage, with Jonathan Burkardt and Alexander Hack scoring in the first half, but Joshua Kimmich and Leroy Sane restored parity in the space of five minutes.

Robin Quaison struck the woodwork as 17th-placed Mainz fought back, though Bayern ultimately had too much.

Niklas Sule's deflected strike and Robert Lewandowski's double – the first of which came from the spot – settling a thrilling contest firmly in Bayern's favour.