Barcelona appeared to mock Manchester United and the Premier League on Twitter just seconds after scoring at Old Trafford.
Robert Lewandowski broke the deadlock from the penalty spot in the second leg of their Europa League knockout play-off match on Tuesday, slotting past David de Gea after a staggered run that drew criticism from fans on social media.
Minutes after the ball hit the back of the net, following the Barcelona players' celebrating in front of their fans and the game resuming, the LaLiga club's official Twitter account took the opportunity to run salt in the wounds of the United supporters.