Hamburg - The new year has not been kind so far to German football giants Bayern Munich and Werder Bremen.
Champions Bayern slumped at home to Cologne on Saturday in their third defeat in four games since the Bundesliga winter break.
Werder meanwhile went down to a last-minute goal at lowly Energie Cottbus and have just one point in four games since the season resumed at the end of last month.
However on a day of thrills and spills in the Bundesliga, Bayern's unexpected defeat was again not punished by immediate rivals.
Hertha Berlin led at Wolfsburg but lost 2-1, while Hoffenheim missed a penalty in stoppage time in an entertaining 3-3 draw at VfB Stuttgart.