Nani won the award in 2011, emerging as the choice of his team-mates.
"I think Jonny is in the running, to be honest with you," said Sir Alex. "As far as I can gather.
"There's quite a few players [in contention]. David De Gea's form recently has been brilliant. Rio Ferdinand has had a great season, one of his best at the club. There's Michael Carrick, Paul Scholes."