The 19-year-old is one of Italy’s brightest young stars, with the likes of Inter, Juventus, AC Milan, Roma and Napoli all linked with a move for his services.
Now working as a talent scout, Totti heaped special praise on Tonali by stating he has everything needed to become one of the world’s best midfielders.
“He has everything that a great player should have – technically gifted, good mentality and is always sharp in any situation.
“He could be like [Steven] Gerrard, [Daniele] De Rossi or [Frank] Lampard.”
Totti also revealed he tried to bring Nicolo Barella to Roma while still working for the club, though the 23-year-old ended up moving to Inter.
“He was one of my favourites,” Totti added. “I tried to bring him to Roma as soon as possible, but unfortunately, I wasn’t able to get it done.”