Mainz had suspended Dutch footballer Anwar El Ghazi for what it called an "unacceptable" Instagram post on the Israel-Hamas war and he was not in the squad for its previous two league games
Davie Selke's two goals put an end to an undefeated run across all competitions, which had lasted more than two months, and hauled Leverkusen into contention for European places in the Bundesliga.
Bayern exited the Champions League after losing 4-1 to Manchester City on aggregate in the quarterfinals and was earlier eliminated from the German Cup.
Dortmund, who were leading by two points before the last round, were held 2-2 at home by Mainz on Saturday, allowing Bayern to finish in first place because of a better goal difference.
The 22-year-old Davies "sustained a muscle bundle injury "in the back of his left thigh during the 3-1 loss at Mainz in the Bundesliga on Saturday.
It was Bayern Munich’s first win of 2023 after re-starting the Bundesliga with three draws and the first time since 2020 the Bavarian powerhouse reached the German Cup quarterfinals.
Bayern are two points behind Dortmund going into the final day of the season and need to beat Cologne away and hope that Mainz get at least a draw against Dortmund if they are to extend their record of 10 straight German...
Germany is hosting Peru in Mainz on March 25 for its first game since the World Cup and then welcomes Belgium in Cologne three days later.
The win at Mainz saw six different scorers for Bayern Munich in their Bundesliga 2022-23 tie. They are also back on top of the table.
Bayern Munich clinched their record-extending 10th consecutive Bundesliga title on April 23 with three round to spare. On Saturday, Bayern Munich lost 3-1...
Holders Bayern Munich stretched their lead to 10 points but second-place Borussia Dortmund have played two fewer games.