Celta Vigo goalkeeper Sergio Alvarez insists Europa League opponents Manchester United are favourites tonight.

The first-leg of the semifinal will be staged in Vigo.

However, Alvarez says: "United are clear favourites because of their budget and the players they have.

"One of their players costs more than the entire Celta squad.

"Of course, they are favorites, but nobody can take the fight away from us, and we will fight to the last. We are living a dream while it is a duty for them to be in the semifinals. We will give everything and try to beat them so we can reach the final."