Manchester United defender Lisandro Martinez says there'll be no relaxing against Europa League opponents Real Betis tonight.

Martinez has insisted that United will not be laidback despite taking a three-goal lead to Real Betis tonight.

He said: "We need full focus [vs Betis] because it's going to be a hard game for us.

"So if you are not focused you can lose this game. The first leg was a great result for us, but it doesn't say anything.

"In football everything can happen, so we have to be ready."