(CNN) -- Newly-promoted Hoffenheim sit atop the Bundesliga after two rounds after beating Borussia Moenchengladbach 1-0 on Saturday for their second straight win.
Hoffenheim players celebrate their second successive win in the Bundesliga.
Defending champions Bayern Munich were reduced to 10-men but salvaged a draw against Borussia Dortmund, while last season's runners-up Werder Bremen and third-placed Schalke, also shared a 1-1 draw.
Hoffenheim, who played before a crowd of 26,000 in Mannheim, nearly eight times the population of their home town, beat fellow newly-promoted Borussia thanks to a Vedad Ibisevic goal, his third in the league this season.
In Dortmund, the home team went ahead before a massive crowd of 80,000 after only eight minutes, when Jakub Blaszczykowski found the top corner of the net with a superb shot from the edge of the area.
Bayern's new captain Mark van Bommel was sent off with his second yellow card of the game in the 23rd minute.
Although down a man, Bayern stepped up the pressure and substitute Tim Borowski earned the draw in the 75th minute.
But Bayern had been lucky to escape when Bastian Schweinsteiger cleared off the line from Florian Kringe.
The draw left Bayern's new coach Juergen Klinsmann still winless after two draws.
Werder Bremen also has two draws from two games after giving up a lead against Schalke.
Torsten Frings put the home side ahead after a pass from Mesut Oezil, a former Schalke player, in the 64th minute.
Defender Heiko Westerman equalized in the 85th. Striker Claudio Pizarro, who arrived form Chelsea last week, started for Werder but could not score.
Martin Jol's Hamburg, who held Bayern to a 2-2 draw in the opener, notched a first win, beating Karlsruhe 2-1 with a last-minute goal from Joris Mathijsen.
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