West Ham United boss Sam Allardyce has fired a warning at Manchester United striker Robin van Persie after his clash with James Tomkins. Tomkins has accused Van Persie of elbowing him.

"I just waited for the right time to get 'em back which would never be in the same game," said Allardyce.

"I thought it was pretty naughty because it was the old 'ave a little look to see where the defender is and then take him out basically.

"Obviously the assistant referee on that side decided to flag for a foul and I thought it was much more than that.

"You don't want an apology, you get on with it. It is all part of the game.

"We are so politically correct that it sickens me.

"I've had my nose smashed a few times and my cheekbone fractured."