Manchester United are wary of tonight's game at Newcastle United, says defender John O'Shea.

"These are the matches we are most wary of," said the Republic of Ireland international.

"People expect us to go up there and score four or five goals and win very easily.

"But we know their fans will turn out in force and if we are not on form and go a goal down there will be a lot of noise."

O'Shea should shrug off a minor heel injury in time to feature on Tyneside, with the defender expecting a tough challenge from a team eager to aid manager Joe Kinnear's recovery from major heart surgery.

"Newcastle are getting some good attacking options coming back fit again and they seem to have a bit of extra fight and grit in their game since Joe Kinnear arrived," said O'Shea.

"And because of what has happened to him they will be working that bit harder to help ease his recovery. Any team going up to Newcastle can lose. We have to keep that knowledge because they can definitely make things more difficult."