But Keane, who played alongside Scholes for a decade at Old Trafford, said: "He has the potential to be as good as Paul Scholes, but not yet.
"To compare him to Paul Scholes you are talking about a top, top player who has done it over 12, 13, 14 years.
"Of course. he is at the perfect club and he has the perfect manager. He has a lot of experience for a young lad, I have to say that.
"I enjoy watching him play. I think he is a very good player. Even the media can see how good his passing and movement is.
"You don't have to be a football expert to see that. I'm sure if he has a good game Arsenal will have a good chance of winning.
"That is how you gauge a good player: if they have a major influence on a game. I'd take him in January if I had the chance!"