"I know Craig well. We've known each other for a long time because we played together at Norwich," he told talkSPORT.
"He's a smashing guy and he's somebody who I know trains hard and works really well in games.
"But he is a Manchester City player at the end of the day and he still has a year left on his contract.
"Until Craig and Man City discuss his future there is not any point in us speculating on anything."