Bush took up kickboxing at seventeen .
Curtis Bush -- Curtis Bush is an American world champion kickboxer who competed in the welterweight , super-welterweight , light - middleweight and middleweight divisions .
world champion kickboxer took up kickboxing at seventeen .
Curtis Bush -- Curtis Bush is an American world champion kickboxer who competed in the welterweight , super-welterweight , light - middleweight and middleweight divisions .