Unbeaten Bayern Munich kept their 11-point advantage at the Bundesliga summit and saw Jamal Musiala return from injury in a 5-1 comeback victory at fourth-placed RB Leipzig on Saturday. Leipzig dominated the first half and went ahead through Brazilian Rômulo. But Serge Gnabry levelled early in the second half and Harry Kane hit his 21st of the league season on 67 minutes. Jonathan Tah, Aleksandar Pavlović and Michael Olise added the late gloss. Germany's Musiala has been out for six months after breaking his leg at the Club World Cup and came on in the 87th minute to set up Olise. Gnabry, whose side beat Leipzig 6-0 in the season opener, told Sky: "We controlled the game a bit more (in the second half), played more cleanly and at half-time we knew we could turn it around. It is wonderful that Jamal is back after such a long time." Second-placed Borussia Dortmund needed a stoppage-time Emre Can penalty to beat bottom side St Pauli 3-2 at home. The hosts were 2-0 up through Julian Brandt and Karim Adeyemi, but James Sands and Ricky-Jade Jones, who volleyed in after a free-kick, hit back for the Hamburg side. Jones then gave away the penalty and Can had home fans jumping for joy deep into injury time. "Like so often it was a roller-coaster ride, we have to manage the game better. We have conceded from two set-pieces again which we've talked about, but in the end we won," captain Can told DAZN. Apparent Dortmund supporter and German Chancellor Friedrich Merz was in the stands to watch the game, his first Bundesliga match in the role, but there is no doubt that Bayern are leading German football. The second half of the season began badly for Bayer Leverkusen, who suffered their second straight defeat after Wouter Burger's floated free-kick went straight in to secure Hoffenheim a 1-0 home victory. The hosts surged up to third spot and Leverkusen are sixth. Second-bottom Mainz's unbeaten run under Urs Fischer ended with a 2-1 loss at Cologne, who won for the first time in nine league games. Heidenheim are up into the relegation play-off spot after a 1-1 draw at Wolfsburg, the place St Pauli would have been in had they hung on. Hamburg drew 0-0 at home to Borussia Mönchengladbach after their midweek game against Leverkusen was postponed. On Friday, Werder Bremen drew 3-3 at home to Eintracht Frankfurt to leave Eagles coach Dino Toppmöller fighting for his job. The two Sunday games are fifth-placed VfB Stuttgart against Union Berlin and Augsburg at home to Freiburg. Games of two halves in Leipzig Leipzig held an emotional goodbye before kick-off to midfielder Kevin Kampl, who has retired due to a family tragedy. Timo Werner was not in the squad ahead of an expected move to San Jose Earthquakes. The home side had four good chances early on and Rômulo's opener on 20 minutes when he poked in David Raum's cross was well-deserved. It also exposed Bayern's makeshift right back Tom Bischof. Bayern had opportunities on the break, but Leipzig should have made it 2-0 when Antonio Nusa blasted over in the worst half of the domestic season from the Bavarians. Vincent Kompany's side had previously only lost to Arsenal this term in the Champions League and they emerged for the second half revived. Ex-Leipzig defender Dayot Upamecano robbed Christoph Baumgartner and Gnabry scored with one touch. The hosts were suddenly the side on the back foot as substitute Michael Olise and runaway league top scorer Kane went close. Manuel Neuer made two top saves at the other end, either side of Kane taking his time to finish off Olise's cross after Ridle Baku's slip. Tah headed in a corner and Pavlović tapped in Olise's superb pass before Musiala had his long awaited return to assist the France star.