Crespo played for Ancelotti at AC Milan.
"Carlo is like a father to me," Crespo is quoted by the Daily Mail. "Carlo is a passionate person; he is one of the coaches that helped to introduce me into Europe and helped me to establish myself. In Italy, he explained to me the way you must behave as a professional – on and off the pitch.
"This was a very important part of my career. When I watch his matches for Everton, I want him to win because he's a great person and a great manager."