San Carlos, Calif. --- WBO Jr. Featherweight champion Nonito "The Filipino Flash" Donaire, with his high altitude simulation training mask on, hits the mitts in preparation for his upcoming world title unification fight against  IBF champion Jeffery "Marvelous Mongoose" Mathebula of Johannesburg, South Africa. Donaire will headline a spectacular Top Rank promoted doubleheader event, Saturday,July 7 at The Home Depot Center in Carson,California that will be televised live on HBO Boxing After Dark®.  In the other main event, Kelly Pavlik, former world champion from Youngstown,Ohio will rumble with Will "Power" Rosinsky of New York. ---- Photos by Chris Farina/Top Rank.