Bayern Munich, missing several key players through injury, drew 1-1 away to Hoffenheim in their Bundesliga opener on Saturday.
Bayern, without injured playmaker Franck Ribery, strikers Miroslav Klose and Luca Toni as well as central defender Martin Demichelis, lacked vision in their game and Hoffenheim were hungrier in attack.
The hosts should have taken the lead when Josip Simunic's 11th-minute header was palmed out of the goal by keeper Michael Rensing, with television replays showing the ball well over the line.
Hoffenheim striker Vedad Ibisevic, injured halfway through last season and making his Bundesliga comeback after seven months out, then saw his header in the 19th minute sail just wide.
Bayern struck six minutes later against the run of play when new signing Ivica Olic tapped in a Danijel Pranjic cross.
Hoffenheim striker Chinedu Obasi got the deserved equaliser four minutes from the break when he fired in a low shot from the edge of the box after a well-executed counter attack.
Schalke 04 striker Kevin Kuranyi struck either side of halftime to secure a 2-1 victory over promoted Nuremberg in their Bundesliga opener on Saturday.
The win also marked a successful debut for coach Felix Magath, who last season steered VfL Wolfsburg to the title.
Kuranyi, who has had a troubled few years at Schalke and was rumoured to be on his way out last season, struck from close range in the 36th minute after picking up a Jefferson Farfan pass.
The striker, eager to regain his place in the Germany team, added a second goal five minutes after the restart by firing in a cross from Georgian Levan Kenia.
Nuremberg managed to pull one back two minutes from time but Slovak striker Marek Mintal's strike came too late.
Eintracht Frankfurt stunned hosts Werder Bremen 3-2, twice going ahead with goals from Yannis Amanatidis, who missed most of last season due to injury, and twice seeing Bremen fight back before the break.
The visitors snatched the three points against the run of play when Czech striker Martin Fenin caught the Bremen defence off guard to tap in from close range in the 71st.
Borussia Dortmund edged Cologne, missing injured striker Lukas Podolski who has rejoined the club from Bayern Munich, thanks to Marvin Matip's own goal in the 75th.
Hertha Berlin managed to beat Hanover 1-0 with a Gojko Kacar goal eight minutes from time.
Champions Vfl Wolfsburg beat VfB Stuttgart 2-0 on Friday while Hoffenheim host Bayern Munich later on Saturday.