Bayern Munich made a dominant start to their new era under Thomas Tuchel by thumping Bundesliga title rivals Borussia Dortmund 4-2 to regain top spot in Germany’s top flight.

Dortmund went into the international break as the league leaders but crumbled in familiar fashion in Bavaria on Saturday as Gregor Kobel embarrassingly skewed a Dayot Upamecano pass into his own net early on.

Thomas Muller netted a quick-fire double to put Bayern 3-0 up in 25 minutes before Kingsley Coman slid in to make it four at the start of the second half.

Dortmund were once again overawed by the Klassiker occasion but did manage to pull two goals back as Emre Can converted a penalty before Donyell Malen rattled one in during stoppage time.

New Bayern boss Tuchel did face former side Dortmund recently in the Champions League in 2019/20 with Paris Saint-Germain, coming out 3-2 aggregate winners in the last 16. However, the former Chelsea manager couldn’t have expected such a generously poor start from BVB in his first outing with Bayern.

The visitors did craft a decent opening before conceding the lead as Marius Wolf teed up Marco Reus, but Matthijs de Ligt covered to blocked his shot on goal.

But moments after Can was booked during a heated exchange with the referee, a serious lapse in judgement from goalkeeper Kobel handed Bayern the lead in the 13th minute. Upamecano’s hopeful punt upfield could have been gathered by the Swiss stopper in his area, but instead he slashed at it and made only the slightest of connections, the ball trickling behind him and into the net.

Dortmund have crumbled in recent trips to the Allianz Arena and they were clearly familiar with the script as some statuesque defending allowed De Ligt to head a corner towards Muller, who stayed onside to turn in from close range.

Bayern’s grip on the game intensified when Dortmund quickly lost possession in their own third. Leroy Sane’s shot from distance was parried by Kobel into Muller’s path and the German forward reacted quickest to grab his second of the game.

Dortmund were hit by an injury to centre back Nico Schlotterbeck just before half time, with Mats Hummels coming off the bench to face his former club. They did engineer a decent move as Julian Brandt and Raphael Guerreiro combined to set up Julian Ryerson, but the left-back fired over.

it could have been 4-0 before the break when Coman ran onto Leon Goretzka’s through ball, but the French winger tripped up on the turf when attempting to round Kobel.

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A BVB cross almost found Sebastien Haller at the start of the second half, but instead Bayern countered to net their fourth goal of the evening. Sane controlled a booming switch of play and crossed low – nutmegging Muller in the process – towards Coman who prodded in at the back post.

Eric Maxim Choupo-Moting had an acrobatic effort disallowed before being denied by Kobel having latched onto Sane’s fizzed pass.

Dortmund saw a faint glimmer of hope when substitute Serge Gnabry brought down Jude Bellingham, allowing Can to beat Yann Sommer from the penalty spot.

Their second goal came slightly too late to force a grandstand finish as Malen produced an instinctive finish after neat interplay with Guerreiro in the 90th minute.

Bayern saw out the remaining few minutes to usurp Dortmund at the top of the Bundesliga, leading their rivals by two points.

GK: Yann Sommer – 6/10 – Had to gather a few ambitious shots but his work load was pretty minimal. A bit too rooted for the second goal.

RB: Benjamin Pavard – 7/10 – Rarely had to be worried about Reus or Guerreiro in behind.

CB: Dayot Upamecano – 7/10 – Might claim the first goal if he’s feeling lucky. Made a few tackles which kept Bayern in the ascendancy. Booked and suspended for Bayern’s next game.

CB: Matthijs de Ligt – 7/10 – Great header gave Muller a tap in. Could have done more to prevent Malen on another day.

LB: Alphonso Davies – 7/10 – Made a couple of mistakes in quick succession early on but his recoveries in defence and outlet in attack made up for any rustiness.

CM: Joshua Kimmich – 7/10 – Engineered another Klassiker victory for Bayern, picking out Muller in dangerous areas.

CM: Leon Goretzka – 7/10 – Created a couple of big opportunities and didn’t lack a goal threat himself.

RW: Leroy Sane – 8/10 – Was allowed to dribble unopposed at times, which obviously plays to his strengths. Nice ball across the box set up Coman.

AM: Thomas Muller – 8/10 – Great anticipation to be in the right place to score two easy goals in the first half.

LW: Kingsley Coman – 8/10 – A constant threat with the ball at his feat and arrived on the spot to convert Sane’s pass.

ST: Eric Maxim Choupo-Moting – 7/10 – Just strayed offside before controlling, swivelling and shooting past Kobel.

Substitutes

Sadio Mane (69′ for Choupo-Moting) – 5/10 – Joined in the frequent Bayern attacks but couldn’t cash in.

Serge Gnabry (69′ for Muller) – 5/10 – Gave away a penalty minutes after his introduction. Had a goal disallowed late on.

Joao Cancelo (79′ for Davies) – N/A

Jamal Musiala (79′ for Coman) – N/A

Ryan Gravenberch (86 for Goretzka) – N/A

Manager

Thomas Tuchel – 7/10 – Was handed a fair amount of joy by Dortmund’s poor defending and might not have learned too much about his side. Still, victory in Der Klassiker is as good a way for Tuchel to start.

GK: Gregor Kobel – 2/10 – You can file Kobel’s mistake for the first goal under ‘Silly Things That Dortmund Do in Der Klassiker‘. Completely unnecessary and yet totally becoming of BVB.

RB: Marius Wolf – 5/10 – Put in some threatening crosses from the right and made a handful of important tackles.

CB: Niklas Sule – 3/10 – Bit clumsy and never had a grip on where Bayern’s elusive attackers were.

CB: Nico Schlotterbeck – 4/10 – Overwhelmed alongside his teammates in the first half before being subbed off.

LB: Julian Ryerson – 3/10 – Never got to grips with Sane and came off at the break.

RM: Julian Brandt – 3/10 – Also substituted at the break. Is Dortmund’s top league scorer this season but never looked like netting here.

CM: Jude Bellingham – 5/10 – Did well to win a penalty in the second half but did struggle against Goretzka and Kimmich with Can all over the place.

CM: Emre Can – 5/10 – Scored Dortmund’s penalty but Can was positionally errant throughout as Bayern stormed up field. His early booking definitely affected his performance in that regard.

CM: Raphael Guerreiro – 4/10 – Didn’t really expect left-back Raphael Guerreiro to cut it in midfield in Der Klassiker. It didn’t really work out but he did get an assist for Malen late on.

LM: Marco Reus – 4/10 – His attempts at ingenuity were snuffed out regularly by Bayern’s alert defenders.

ST: Sebastien Haller – 5/10 – Dortmund never had a base to build from to involve Haller further up the pitch. Brought off just after the hour.

Substitutes

Mats Hummels (44′ for Schlotterbeck) – 3/10 – Turned like a truck and looked like he was running in quicksand in comparison to Sane and Coman.

Donyell Malen (46′ for Brandt) – 7/10 – Jinked in from the left to squeeze a late effort past Sommer to make the scoreline a little more respectable.

Salih Ozcan (46′ for Ryerson) – 5/10

Youssoufa Moukoko (61′ for Haller) – 6/10

Mahmoud Dahoud (61′ for Reus) – 6/10

Manager

Edin Terzic – 4/10 – Can’t really help his side conceding an awful opening goal, but the same mental fragilities are present for Dortmund. Big question marks over their character in the title run-in remain.

Player of the match – Thomas Muller (Bayern Munich)

Chelsea head coach Graham Potter has refused to rule out the reintegration of Romelu Lukaku next season once his loan at Inter expires.

After rejoining the Blues from the Nerazzurri for a then-club record fee in the summer of 2021, the Belgian was unable to hit the heights back at Stamford Bridge.

Lukaku returned to Inter on loan for the 2022/23 season, and 90min understands the Serie A side will look to take him on for another year but on reduced terms.

However, Potter has opened the door to Lukaku having another crack at Chelsea next season.

“Although he is our player, he is on loan and an Inter Milan player. I think it is important he finishes that off. Then we have a decision to make in the summer,” Potter said at a press conference on Friday.

“He is someone I admire a lot, I like a lot but again it is something to think about over the summer.”

Lukaku has spent the current season battling various injury and fitness woes, missing much of Inter’s campaign so far.

He looked notably out of sorts at the 2022 FIFA World Cup with Belgium as the Red Devils were eliminated at the group stage.

However, Lukaku has started to pick up form again, scoring a hat-trick against Sweden and once against Germany over the recent international window.

Lukaku’s Inter are also through to the quarter-finals of the UEFA Champions League where they will face Benfica. The winners will take on either AC Milan or Napoli in the semi-finals.

Bayern Munich are keen to sign Chelsea forward Kai Havertz this summer, 90min understands, with Blues teammate Mason Mount also on their radar.

Former Chelsea boss Thomas Tuchel was recently unveiled as Bayern’s new manager, replacing Julian Nagelsmann, and the Bundesliga giants have wasted little time in getting started on their summer transfer plans.

Sources have confirmed to 90min that Bayern officials have asked Tuchel about a possible summer move for Mount, who will be sold this summer if he continues to reject Chelsea’s offers of a new contract.

While Mount’s situation is being followed, the England international is not understood to be among Bayern’s top targets for the summer, with Havertz ahead of him on the German side’s wish list.

Bayern have long been interested in Havertz following his emergence as a star with Bayer Leverkusen and have tracked his progress ever since his €80m move to Chelsea in 2020.

90min understands that Bayern see 23-year-old Havertz as a long-term replacement for veteran forward Thomas Muller, who will turn 34 in September, and there is a confidence that Havertz is keen to make the move this summer.

In a recent interview with Bild, Havertz admitted it would ‘clearly’ be difficult to reject Bayern and also expressed his interest in reuniting with Tuchel.

“Bayern is a huge club and for me, especially as a German, it’s difficult to say no – but my goal has always been to play abroad and see a new country,” he said.

“Definitely!” Havertz added when asked whether he would want to work with his former boss again. “You never know what will happen in football. Everything can happen very quickly. Never say never.”

Chelsea are in no rush to lose Havertz but may be forced into making a decision at the end of the season as the German enters the final two years of his contract at Stamford Bridge.

90min previously reported that Chelsea are keen to avoid any players entering the final 24 months of their deals and club officials are prepared to authorise sales for any unhappy players who may threaten to leave on free transfers.

Should Havertz push to leave this summer, Chelsea may have to listen as the Blues must sell a number of players in their bloated squad. On top of the impracticality of such a large group of players, Chelsea are also aware that funds need to be raised after an expensive year of signings which could end without any Champions League football.

Chelsea also still have plans to make further signings and are keen to sign a new striker, with Napoli’s Victor Osimhen an expensive top target to join alongside the imminent arrival of Christopher Nkunku from RB Leipzig, and selling Havertz would go a long way to helping Chelsea fund a move for the Nigerian.