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:  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.
i don't know