While Romero will play in goal in the Europa League final, Mourinho also confirmed that third-choice goalkeeper Joel Pereira will make his Premier League debut against Crystal Palace on Sunday.

Injured David de Gea did not travel with the squad to Southampton, but when asked about the Spaniard's future, Mourinho said the 26-year-old will play for the club again.

"He'll play the first match against LA Galaxy in pre-season in Los Angeles," he said.

"I hope to play Sergio in the final and hopefully we don't have problems with the keepers. David is top of the world and obviously we want to keep the top in the world."