Phelan: Man Utd greatest place for Rooney
"Wayne is at the greatest club you can be at," Phelan told BBC Radio 5 live. "Why would you want to jeopardise that?
"Unless you want a fresh challenge and you feel that challenge isn't being met at Manchester United."
Phelan added: "Every player is entitled to express a desire to want to move on.
"Any player can do that at any time."