Manchester United manager Jose Mourinho has bemoaned Feyenoord's "clear offside" goal in their UEFA Europa League encounter on Thursday night.
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The Red Devils lost the opening game of their Europa League campaign in Rotterdam, with the defeat also marking the club's fourth successive away loss in Europe.
However, the Portuguese tactician believes his side did not deserve to lose against the Dutch outfit, believing Feyenoord should have been blown up for one of their players being offside during the build-up to their winning goal.
"Of course, I'm not happy with the start," Mourinho told MUTV.
"I think in the second half of the game, in my opinion, we were always in control.
"We were trying to win and they were trying not to lose. We felt like they were collapsing a bit physically, they were in trouble and it was that moment in which we lost the game.
"It was double unlucky because it was a clear offside (for Feyenoord's goal)."
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Mourinho will be hoping to avoid a third straight defeat on Sunday, when the Old Trafford club travels to Watford for a Premier League fixture.
Do you agree with Mourinho that United were unlucky on Thursday night? Have your say in the comments section below.