Whom did Ron Lyle and Oscar Bonavena both box?
Oscar Bonavena Oscar Natalio "Ringo" Bonavena (September 25, 1942 – May 22, 1976) was an Argentinian heavyweight professional boxer with a career record of 58 wins, 9 losses and 1 draw. A rugged, wild-swinging puncher, he was nicknamed "Ringo" because of his Beatles haircut, and enjoyed professional success in both Argentina and the United States. He is most famous for giving both Joe Frazier and Muhammad Ali tough battles.
Floyd Mayweather Jr. Floyd Joy Mayweather Jr. (born Floyd Joy Sinclair; February 24, 1977) is an American professional boxing promoter and former professional boxer. He competed from 1996 to 2007 and 2009 to 2015, and made a one-fight comeback in 2017. During his career, he held 15 world titles in five weight classes and the lineal championship in four different weight classes (twice at welterweight), and retired with an undefeated record of 50–0, surpassing Rocky Marciano's record of 49–0. As an amateur, Mayweather won a bronze medal in the featherweight division at the 1996 Olympics, three U.S. Golden Gloves championships (at light flyweight, flyweight, and featherweight), and the U.S. national championship at featherweight.