Michael Dwayne Weaver a retired professional boxer who between March 1980 and December 1982 held WBA version World Heavyweight Championship, and who is better known in the boxing world simply as Mike Weaver.
By 1972 Weaver was living and training in California, and took up professional boxing. In his early career, Weaver was considered a journeyman opponent. He was frequently brought in on short notice and overmatched against more experienced and developed contenders, and used as a sparring partner for Muhammad Ali and Ken Norton, who famously nicknamed him "Hercules" due to his top developed muscle definition.
Michael had a high profile World title fight with reigning and undefeated WBC champion Larry Holmes in New York's Madison Square Garden in June 1979. New cable channel HBO bought the rights to the fight as Weaver was so lowly-regarded the fight was seen as a mismatch and the networks didn't want anything to do with it (Weaver was 20-8 to Holmes' 30-0). But Weaver proved far better than expected, however, and gave Holmes a really tough battle. Finally Holmes would rally with that great champion reserve by decking Weaver with sharp uppercut in the 11th and stopping him on his feet in the 12th.