Manchester United manager Erik ten Hag said the referee made a "really bad decision" in not sending off Jules Kounde for a foul on Marcus Rashford during the 2-2 Europa League draw against Barcelona.
Marcos Alonso put the hosts ahead at Camp Nou shortly after the break before Rashford and an own goal by Kounde gave United the lead in the knockout round first leg at Camp Nou.
Raphinha then levelled for Barcelona when his cross eluded David de Gea. Ten Hag was furious in the second half when Rashford went down under a challenge from last-man Kounde but referee Maurizio Mariani waved away claims for a foul and VAR backed the decision.
Barcelona equalised soon after. "I think the refereeing had a big influence in this game. It was a clear foul on Rashy," Ten Hag said. "You can discuss if it’s in or outside the box, but then [if it's outside] it’s a red card, because he was one-on-one with the keeper.