WBO light flyweight champion Ivan “Iron Boy” Calderon (32-0-1, 6 KOs) defend on September 12 against No. 1 contender Rodel “Kid Rapido” Mayol (25-3-1, 19 KOs) in the 12-round main event headlining the “Undefeated Champions” pay per view event, airing live in the United States from the Coliseum of Puerto Rico in San Juan. Calderon-Mayol is a rematch of a brawl this past June held in Madison Square Garden that ended in a six-round technical draw because Ivan was unable to continue due to a cut from an accidental head butt he suffered in the fourth round.

“The fight at the time of the stoppage was very tight,” Calderon said from training camp in Puerto Rico. “I started very slow but, between rounds, I was getting my rhythm. The fight was my first in Madison Square Garden and I felt pressure to look good and put on a good performance. Mayol has fast hands. He came to box, not to try for a knockout like everybody else. He’s one of the best fighters in the world right now in the 108-pound division.”

The Iron Boy continued, “Fans can always expect from me to hit and not be hit. I am the best pure boxer in the business and I need to do that to win this fight. I want to unify my title with the other champions – Edgar Sosa (WBC), Brian Viloria (IBF) and Giovanni Segura (WBA) – and then try and move up to 112 pounds to become world champion in three divisions and retire undefeated. I want everybody to remember me as the best pure fighter in the world and a champion who helps his people.”