Ten-man Bremen allow Bayern Munich to open a three-point gap following a 2-1 defeat at VfL Bochum.
Werder Bremen coach Thomas Schaaf was disappointed as his ten-man side allowed Bayern Munich to open a three-point gap following his team's 2-1 defeat at struggling VfL Bochum on Sunday.
Bremen's Danish striker Daniel Jensen put the hosts ahead just before half-time, but Bochum fought back and equalised when forward Benjamin Auer's right-footed shot beat goalkeeper Tim Weise on 68 minutes.
Werder's Brazilian international defender Naldo was dismissed when he was shown a straight red card with twenty minutes left after a bad tackle on Bochum striker Stanislav Sestak.
And Bochum's Algerian international defender Anthar Yahia gave his side victory with a header on 84 minutes to put his side 11th in the league.
"We could not get the point and it was a similar situation to Dortmund, where we were knocked out of the German Cup last week where we just couldn't stamp our authority," said Schaaf.
"We can't afford to do this again, we need to be much more resilient."
The result keeps Bremen second while Schalke 04 are up to fifth after their comfortable 4-1 win over VfB Stuttgart with Kevin Kuranyi and Heiko Westermann celebrating their call-ups for Germany's friendly against Austria next week with goals.
Kuranyi headed Schalke into a 32nd minute lead and made it 2-0 with a shot on 52 minutes, before picking up a yellow card as Stuttgart midfielder Antonio da Silva levelled the scores with a free-kick on 61 minutes.
But uncapped Westermann, who is expected to make his debut in Vienna on Wednesday, put his side into a 3-1 lead with a header on 76 minutes before Brazilian midfielder Ze Roberto scored on his debut with a goal in the 92nd minute.
On Saturday, Hamburg slipped back to fourth in the table as Bayer Leverkusen claimed third spot with late 3-2 win at Energie Cottbus with German striker Simon Rolfes converting a late penalty.
Bayern had to survive a fightback in Rostock on Friday before the German giants came away with a 2-1 win.
Bayern cruised into a 2-0 half-time lead courtesy of goals from Franck Ribery and Luca Toni.
But coach Ottmar Hitzfeld's side made a nervous start to the second-half as their defence leaked an early goal by Rostock's Enrico Kern.
A penalty by Hanover's Hungarian midfielder Szabolcs Huszti just before half-time gave his side the lead in Hamburg before Croatian striker Ivica Olic bagged his eighth league goal of the season as Hanover had Sergio Pinto dismissed late in the game.
There was a goal feast in Duisburg as the league's bottom side drew 3-3 win over mid-table Borussia Dortmund.
Nuremberg stay in the bottom three after their 2-0 defeat at Karlsruhe, who are sixth.
Hertha Berlin were humbled 3-0 at home to Eintracht Frankfurt as their 20-year-old Czech international striker Martin Fenin enjoyed a dream debut which leaves both sides in mid-table.
And Arminia Bielefeld were beaten 1-0 at home to VfL Wolfsburg to hang just above the relegation zone.