High Quality Content by WIKIPEDIA articles! Kevin Rosier (born January 6, 1962) is an American former kickboxer, boxer and mixed martial artist. He had much success as a kickboxer, winning a number of titles, but did not transition particularly well into the world of boxing and was mostly seen as a journeyman fighter. Notably, he also took part at the inaugural Ultimate Fighting Championship event in 1993 where he reached the semi-finals.