What great  boxer formerly known as Cassius Clay along with American former professional boxer and commentator trained at Gleason's Gym?
Gleason's Gym:  Before his first title fight against Sonny Liston, Muhammad Ali, then known as Cassius Clay, also trained at Gleason's. Paulie Malignaggi: Paul "Paulie" Malignaggi ( ; ; born November 23, 1980) is an American boxing commentator and analyst, and former professional boxer who competed from 2001 to 2017.
Muhammad Ali