Manchester United manager David Moyes admits there is some anxiety inside the club ahead of their FA Cup tie against Swansea on Sunday.

United have not lifted the FA Cup trophy in over a decade and Moyes says they will be giving everything to try and change that.

“I am sure there is [frustration and anxiety],” added Moyes.

“If you are at a club like Manchester United you want to be involved in all the trophy-winning opportunities.

“For Manchester United not to win the FA Cup for 10 years is something of a surprise. Winning it is something we will try and do, as we try in all competitions.

“We will do everything we possibly can to try and go through.”

United, though, will be without the services of Ashley Young on Sunday due to the attacking midfielder suffering a shoulder injury in their New Year’s Day match against Tottenham Hotspur.

Young injured his shoulder in a controversial collision with Tottenham goalkeeper Hugo Lloris at Old Trafford. The midfielder landed awkwardly as he leapt over Lloris' flying attempt to win the ball, which Moyes remains convinced should have resulted in a penalty for his team and a red card for the Frenchman.

“Ashley has got an injury that is going to keep him out for a time,” said Moyes.

“It is a shoulder injury he received in the challenge by the goalkeeper. I am not sure how long it will be.”

Moyes, though, despite the constant call for more video-technology, has urged against it.

“I wouldn't go down the route of video technology,” added Moyes.

“I trust the referees to make the right decisions.

“They do make the wrong ones at times and I have not changed how I felt on Wednesday. I thought that was the wrong decision.”