Manchester United manager Jose Mourinho says Ajax shouldn't be in the Europa League final.
United's opponents were knocked out of this season's Champions League by Rostov in the last qualifying round in August, winning automatic entry to the Europa League group stage.
Mourinho said: "They are a Champions League team, they come from the Champions League. I always disagree with it.
"I think a team shouldn't play two European competitions in the same season, they should go home. They shouldn't have the opportunity to play the Europa League. The Europa League is for teams who go into the Europa League like us.
"We finished fifth last season, and we went to the Europa League. We start the Europa League from the beginning of the season and we have to fight to where we are."