Keane enjoyed a successful loan last season with Blackburn Rovers.
He told the Mail on Sunday: "I've heard the new manager likes to bring young players through and that's always been the way at United. With Giggsy staying on, that can only benefit the young players. He's an idol for every player that comes through. You see how professional he is and his enthusiasm for training every day no matter the fact he has played for 20 to 25 years at the top level.
"He comes in every day wanting to give his best. Hopefully, we'll have a good pre-season and prove ourselves. If we do that, we'll have a chance to play."
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