Jose Mourinho bemoaned an offside goal after Manchester United's Europa League campaign got off to a losing start against Feyenoord on Thursday night.
Tonny Vilhena powered home the winner after 79 minutes, but Nicolai Jorgensen appeared offside as he broke down the wing before crossing to set up the only goal of the game.
United were lacklustre going forward but Mourinho insisted his side did not deserve to lose.
'Of course I am unhappy, especially because the way the game was going in the moment we don't deserve to lose,' he said on BT Sport 3.