West Ham United will need to come from behind in their UEFA Europa League round of 16 tie after falling to a narrow 1-0 defeat in the first leg at SC Freiburg
Michael Gregoritsch's 81st minute finish settled a tight contest in Germany, as the substitute ghosted in to tap home Roland Sallai's cross-shot.
There was stoppage drama as referee Alejandro Hernández was called to the VAR monitor but decided against awarding the Hammers a penalty for handball.
Watch the highlights in the video player above.