Ray Mercer

Raymond Anthony Mercer (born April 4, 1961) is an American former professional boxer, kickboxer, and mixed martial artist who competed from 1989 to 2009. As an amateur, he won the heavyweight gold medal at the 1988 Summer Olympics.

In 1991, Mercer captured the WBO heavyweight world title and later successfully defended it against Tommy Morrison whom he previously decisioned 5-0 during 1988 Summer Olympics trials. He subsequently vacated the belt. Mercer was nicknamed "Merciless" for his punching power and aggressive fighting style, a moniker that followed him throughout his professional career.