Herb SilerHerb Siler was a heavyweight boxer. He won 16 fights and lost 12, with no draws.Professional careerHis career started in 1960 and ended in 1967. Siler lost to Muhammad Ali through a 4th-round knockout in 1960.Personal lifeIn 1972, he was convicted of manslaughter and subsequently served a 7-year sentence. His grandson is NFL linebacker Brandon Siler.