Hamburg remain in serious danger of being relegated from the German Bundesliga for the first time after being held 0-0 at home by Greuther Furth in the first leg of their relegation play-off.
The only club to have played in the Bundesliga top flight in every season since its inception in 1963, Hamburg's dreadful season saw them finish third from bottom and condemned them to a two-legged play-off against Furth, who were third in the second tier.
Hamburg, who were missing goalkeeper Rene Adler due to injury, thought they were in front when Pierre-Michel Lasogga headed in a Rafael Van der Vaart free-kick midway through the second half, but the goal was disallowed for offside and Furth will fancy their chances of clinching an immediate return to the top flight in the return.
"We put them under more pressure in the second half but not enough to score," Dutch international Van der Vaart said. "The 0-0 scoreline is very dangerous. We will need to give everything on Sunday."
The second leg will be played at Furth's Trolli Arena on Sunday afternoon.