Speaking to La Gazzetta dello Sport, the Germany icon said: "I also made the Bayern first team at 17, but I wasn’t at his level, which is spectacular. I’ve never seen anything like it at that age. I’m talking about the consistency of his performances, because the natural talent is obvious.
"What makes me think that this boy is special is his constant search for prominence on the pitch: in difficult moments, he always steps up, and at 17 years of age, that is not normal. He was the protagonist of two excellent seasons, the last one even spectacular; I have never seen a kid like him."