Russian former professional boxer Nikolai Valuev first won in 2005 the heavyweight champion title from this American former professional boxer of which ethnicity?
John Ruiz John Ruiz (born January 4, 1972) is an American former professional boxer who competed from 1992 to 2010. He held the WBA heavyweight twice between 2001 and 2005, and is the first Latino boxer to win a world heavyweight title.
Ron Lyle Ronald "Ron" Lyle (February 12, 1941 – November 26, 2011) was an American professional boxer who competed from 1971 to 1980, and in 1995. He challenged once for the undisputed world heavyweight title, losing to Muhammad Ali in 1975. Lyle was known for his punching power, crowd-pleasing fighting style, as well as courage and determination inside the ring. He held notable wins over Buster Mathis, Oscar Bonavena, Jimmy Ellis, Earnie Shavers, Joe Bugner, and Scott LeDoux, but is best known for his slugfest against George Foreman in 1976, which won Fight of the Year honors by "The Ring" magazine.