Pierre-Michel Lasogga's 88th-minute goal was the difference as Hamburg claimed a 1-0 win at 10-man Hoffenheim in the Bundesliga.
Hamburg increased the pressure on under-fire Hoffenheim coach Markus Gisdol as Pierre-Michel Lasogga's late goal gave it a 1-0 away win at the Rhein-Neckar Arena.
With Hoffenheim having taken only six points from nine games coming into the clash, reports in the German media had suggested Gisdol would be sacked if Hoffenheim suffered defeat in Friday's contest.
A first half of few chances saw the best opportunity fall to Hamburg, which was denied by a fine double save from Hoffenheim goalkeeper Oliver Baumann, who kept out efforts from Nicolai Muller and Lasogga in quick succession in the 23rd minute.