Mario Gomez, Toni Kroos, Ivica Olic and Holger Badstuber of Muenchen react during the Bundesliga match between FSV Mainz 05 and FC Bayern Muenchen at Coface Arena on November 27, 2011 in Mainz, Germany.
Bayern Munich finished the weekend third in the Bundesliga after suffering a shock 2-3 loss at Mainz 05 on Sunday, its second successive league defeat.
Andreas Ivanschitz gave Mainz an early lead and, although Daniel van Buyten headed Bayern level after halftime, further goals from Marco Caligiuri and Niko Bungert put the hosts 3-1 up. Van Buyten then pulled another goal back with 11 minutes left, which like the Belgian defender's first effort came from a floated Toni Kroos freekick.
Bayern, which looked unstoppable earlier in the season when it won 10 games in a row in all competitions, has now lost twice while captain Bastian Schweinsteiger has been sidelined following surgery on a broken collar bone earlier this month.
Earlier, Werder Bremen bounced back from the previous week's 0-5 drubbing at Borussia Moenchengladbach by beating VfB Stuttgart 2-0.
Bayern, top at the start of the weekend, has dropped to third with 28 points from 14 games, one behind Borussia Dortmund and Moenchengladbach. Bremen is fourth with 26.
Dortmund, which beat Bayern 1-0 a week ago, continued its winning run with a 2-0 victory over Schalke 04 in the "Mother of all Derbies" on Saturday and Moenchengladbach won 3-0 at Cologne on Friday.