Manchester United defeated Norwich 4-0 in Ryan Giggs' first match as interim manager.

"The first half we were a little bit slow, but I just reminded them that the tempo needs to be quicker and they reacted well to that.

"I didn't sleep last night [because of the team selection]. Players on the bench, leaving the likes of Juan Mata out of the starting XI was a difficult decision and a position I've never been put in before. And it was really tough. I'm interim manager but I'm also one of their teammates, so it was tough to leave them out.

"But you've seen the response of Juan. That's a true professional, to not moan and not sulk and come on and perform like he did."

Giggs also insisted that he hasn't given any thought to the future and whether he will argue his case to become manager on a full-time basis.

"It's not something that I'm thinking of at the moment, just these four games. It's taken so much out of me this week that I've not really had time to look too far into the future. My next job now is to get the players ready for Sunderland.

"All of us have let ourselves down this year. We haven't played to the ability we're capable of. Every time you play for United you have to keep to that standard and the standard that we set today was excellent."