HOBOKEN, N.J. – WBO super featherweight champion Roman “Rocky” Martinez (22-0-1, 13 KOs) makes his first title defense in the 12-round co-feature September 12th against WBO No. 9 rated Vincente Martin “El Mono” Rodriguez (25-2-1, 13 KOs) on the “Undefeated Champions” pay per view event, airing live in the United States from the Coliseum of Puerto Rico in San Juan.

“Undefeated Champions,” headlined by WBO and The Ring magazine’s light flyweight champion Ivan “Iron Boy” Calderon (32-0-1, 6 KOs) defending both belts in a rematch versus No. 1 contender Rodel “Kid Rapido” Mayol (25-3-1, 19 KOs) in the 12-round main event, is being distributed in the United States by Integrated Sports for live viewing at 9 PM/ET – 6 PM/PT on cable and satellite pay-per-view via iN Demand and DirecTV for a suggested retail price of only $29.95.

Martinez, rated No. 4 by The Ring, captured the WBO title March 14, stopping Nicky Cook in the fourth round of their title fight in England.”Rocky” believes his time is now. “”A lot of people know me after the Cook fight,” Martinez remarked. “I never refuse to fight anybody, anywhere, and that’s why we were so confident fighting Cook in his backyard. Rodriguez is going to try and surprise me. He doesn’t have anything to lose. I’ve heard that he likes to fight and, believe me, if he can fight I will knock him out because that’s what I like to do.

“I’m not looking past Rodriguez, but after I win this fight I would like to fight Robert Guerrero, the IBF champion. I am the best in the division and right now nobody can stop me. This fight is going to help me continue to develop my popularity in the United States, fighting on pay per view there. It’s going to be my first title defense and in the near future everybody will be talking about me. I am a real fighter who has a big heart and likes to fight. I already said I never refuse to fight anybody. I like knockouts but also have great stamina to go 12 rounds. I really like to throw a lot of punches.”

The “Unbeaten Champions” PPV card, presented by PR Best Boxing Promotions, Inc., also includes a 10-round super flyweight bout between Juan “Panterita” Mercedes (23-2, 16 KOs) and Jesus “Changa” Martinez (18-6, 11 KOs), as well as unbeaten cruiserweight prospect Carlos Negron (3-0, 3 KOs), 2008 Puerto Rican Olympian, showcased against Larry Carter (3-4-1, 3 KOs).