He said: "He deserves to be Ballon d'Or.
"He does not behave like a star. Despite all the marketing that supports him, he is down to earth. He is a quiet boy who tries to make life as simple as possible.
"He's the best player I've had at my side and also he trains very well and is a hard worker."
On fellow new signings Kaka and Karim Benzema, Higuain added: "Kaka is also a very quiet guy and has settled in well. And Benzema is a young lad with the same intentions and goals as me."