Floyd Mayweather, Jr. (Born February 24, 1977), is a professional boxer who has a record of 40-0 (25 KOs or TKOs). He is known in and around boxing as the greatest boxer of his generation and one of the best of all time.
Since July 18, 2005, he has been rated by The Ring magazine as the number-one pound for pound boxer in the world. Mayweather has won six world boxing championships in five different weight classes; he is the current WBC welterweight champion. He was named Ring Magazine Fighter of the Year in 1998 and 2007.
After a Hall of fame Career, Mayweather retired undefeated on 6th June 2008.
On September 19, 2009, Mayweather came out of a 21-month retirement and beat P4P #2 Juan Manuel Márquez.
Mayweather is currently ranked number 2 pound for pound and is scheduled to fight P4P #3 Shane Mosley on May 1st 2010.