When was the British former professional boxer born who competed from 1997 to 2012 and who was defeated in December 2007 against Floyd Mayweather?
Floyd Mayweather Jr. vs. Juan Manuel Márquez Floyd Mayweather vs. Juan Manuel Márquez, billed as Number One/Número Uno, was a welterweight superfight which took place on September 19, 2009, at the MGM Grand Arena in Las Vegas between five-division world champion Floyd Mayweather Jr. (39–0, 25 KO) and three-division champion Juan Manuel Márquez (50–4–1, 37 KO). The fight served as a return to the ring for Mayweather, who, after his knock out victory of Ricky Hatton in December 2007, announced he would take a two-year layoff from boxing which later turned into retirement.
Brian London Brian Sidney Harper (born 19 June 1934), known professionally as Brian London, is an English retired heavyweight boxer. He was the British and Commonwealth heavyweight champion from 1958 to 1959, and twice challenged for the world heavyweight title, losing to Floyd Patterson in 1959 and Muhammad Ali in 1966, both times via knockout. He was one of a quartet of British boxers, with Henry Cooper, Joe Erskine, and Dick Richardson, who dominated the British boxing scene throughout the 1950s and 1960s.