11.   Diego Corales defends his IBF junior lightweight title against slick Derrick Gainer on the undercard of the Mayweather-Vargas fight....

12.   Diego Corrales defends his junior lightweight title against Angel Manfredy in another compelling bout on the card.

13.   Earlier in the evening, Arturo Gatti of Jersey City retained his International Boxing Federation junior lightweight title by stopping Mexican challenger Gabriel Ruelas in the fifth round.

14.   Four months later, the former Olympic gold medalist followed that win with an impressive victory against Genaro Hernandez, defending his World Boxing Organization lightweight title.

15.   Gatti, a former International Boxing Federation junior lightweight champion, needs a victory against Robinson to put himself back in contention for a lightweight title.

16.   He has agreed to meet Angel Manfredy in December, the first defense of the WBC junior lightweight title he won from Genaro Hernandez.

17.   He holds the World Boxing Council super lightweight title.

18.   He got up from two first-round knockdowns to beat Fred Pendleton and win the IBF lightweight title, his one and only world championship.

19.   He returned to the ring to challenge unsuccessfully for the featherweight and lightweight titles.

20.   He won a world junior lightweight title.