Johnson (23-19 MMA, 15-15 UFC) has since had mixed results, but is still trucking in arguably the sport’s toughest division.

Michael Johnson is a retired American sprinter who has a net worth of $14 million. Over the course of Johnson's career, he won four Olympic gold medals and eight World Championships gold medals.

Michael Johnson enjoyed 400 finals victory streak of 58 races, stretching eight years. For the first nine decades of this century, no male runner had ever won both these races in a major meet.