Manchester United boss Jose Mourinho rates tonight's Europa League clash with Celta Vigo the biggest game in their history.

United have the advantage going into Thursday's second leg at Old Trafford after winning 1-0 in Spain last week.

"In terms of motivation, we are even," he said. "For Celta, in their words, it's the most important match of their history and my feelings it's also the most important match of our history.

"It doesn't matter what happened before, what matters is the next one. I don't believe Celta wants more than us.

"Nobody has more motivation than I have to try to win tomorrow. It is the step we need to win through. If we win, then it means we are strong enough to go to the final. The Champions League is the competition we want to be in. I want to focus on where we are."