Floyd Mayweather Jr. is considered to be the best boxer in the world.
Many sporting news and boxing websites ranked Mayweather as the best boxer in the world , pound for pound , twice in a span of ten years ; including The Ring , Sports Illustrated , ESPN , BoxRec , Fox Sports , and Yahoo! Sports .	ESPN	ESPN	pound for pound	pound for pound	BoxRec	BoxRec	Sports Illustrated	Sports Illustrated	Fox Sports	Fox Sports (United States)	Yahoo! Sports	Yahoo! Sports
