Former Arsenal star Ray Parlour believes Robin van Persie made up his mind to leave the club last season.
Van Persie has revealed on his official website he will not extend his contract, which runs out at the end of the 2012-13 season.
"I think he knew three or four months ago that he wasn't going to stay," Parlour said.
"That's football these days. People move on quickly. Arsenal have to accept it and move on."