And taking on some massive foes during his time in the ring, Hagler of course shared the ring with his trio of Four Kings ...

Sugar Ray Leonard enjoyed a number of epic battles throughout his career, many of them coming against fellow members of the 'Four Kings.' ...

Off the back of the most controversial win in boxing history, Sugar Ray Leonard showed off his staggering knockout ability one final time.

Sugar Ray Leonard has paid homage to one former rival in particular when reflecting on his storied professional career.