Herrera issues a warning

players that have a lot of quality. In theory, we are the strongest team left in the competition but we have to respect all of our rivals because otherwise they can surprise us.

“It’s crucial for us. Not just because it’s a European title, which is important, but also the fact that you can qualify for the Champions League and play in a European Super Cup final.

“My team-mates ask me about Celta, because a lot is at stake for us in this tie. I tell them to remember the Athletic side that won at Old Trafford, because it’s very similar.”

Herrera says Celta have the same kind of bold, enterprising mentality as his former club and fellow La Liga side Bilbao, and pinpointed former Liverpool striker Iago Aspas as the dangerman. “They are an attack-minded side,” he said. “It doesn’t matter whether they play at home or away, they always attack.

“They are a very dangerous side. They like to have possession and they rely on high pressing. They’re a team who make life difficult for you and they have good quality players like Aspas.”

Herrera’s father, Pedro Maria, played for Celta and then worked for the club. “I was very young then. Of course I have a lot of sympathy for Celta, we have a lot of friends in Vigo,” said Herrera.

And he paid tribute to United boss Jose Mourinho for bringing out the best in him this season. The Spain international has started 41 games, including 26 in the Premier League.

“Mourinho is a winner, he’s very competitive,” said Herrera. “He gives you all the confidence in the world from the first day.

“I’ve improved as a player with him and I’m very grateful for that. I feel loved.”