Van Nistelrooy (right) was an unused substitute

Van Nistelrooy was left on the bench during Sunday's 4-0 victory over Wigan with Louis Saha picked ahead of him.

"The manager told me before the game that I wasn't playing," he said.

"I was very disappointed but I could understand why he wanted to play Louis because he has been playing very well in the competition this season."

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Van Nistelrooy added: "You have to accept the decision as a professional player.

"There is no problem between me and the manager. I cheered the first two goals with everyone else on the bench and I was happy for the team.

"I've heard suggestions I was acting. Well, if I was, then I'm the best actor in Holland.

"I've scored a lot of goals this season and feel I've been playing well and I hope to be back in the team to play Wigan on Monday. I expect to play the league matches."