Giggs believes Cleverley is a true of late developer.
He told the Telegraph: "Tom has had to wait his turn because of the quality we've had in the team. Some players like Wayne burst on to the scene at 16. Others develop a bit later. Becks developed a little bit later than Butty, Scholesy and Nev. You're probably getting that with Tom. He's had a couple of years getting loaned out. He's got rid of all the injury niggles. Now you're seeing his full potential.
"I had first-hand experience at the Olympics, not only in the games but in training, of his enthusiasm. He's the sort of lad who wants to get better, wants to learn and wants to become a top player. When you have that attitude and with the talent he's got, I'm pleased how well he's doing for United and England."