"I was really disappointed and surprised that Patrik, with all his experience of dealing with the press, would make such an inappropriate comment," O'Neill told Aston Villa's official website.
"The sad aspect of it is that we are paying Patrik's wages for him to recommend one of our players to another football club. It's ludicrous.
"I think Pat realises that now and he's apologised. He said he didn't mean a great deal of harm but the harm has been done and he won't be playing any part in proceedings from here on in."