CAROLINA, PUERTO RICO- Former two time world champion Ivan "Iron Boy" Calderon, former super bantamweight champion Wilfredo Vazquez Jr. and WBO junior flyweight champion Yessica Bopp will headline this Saturday, October 29, at the WBO Champions Tournament which takes place at the Coliseo Mario "Quijote" Morales in Guaynabo, in a PR Best Boxing Promotions (PRBBP) presentation as part of the 24th WBO Annual Convention.

In the main event of the evening, former WBO 105 and 108 pounds titlist Calderón (34-2-1, 6 KOs) will face Mexican Felipe Rivas (11-8-1, 5 KOs) for the 105lb WBO Latino title.

The co-feature will have Vazquez Jr. (20-1-1, 17 KOs), who reigned at 122 pounds from 2010 to 2011, facing former world title challenger Roberto "Mako" Leyva (28-13-1, 21 KOs). This is a 10 round bout for the WBO super bantamweight Intercontinetal title.

Meanwhile,  the Argentinian Bopp (16-0, 7 KOs) will defend her WBO junior flyweight belt against Suzane Warner (9-10-1, 2 KOs) in a 10 round bout.

The other two title fights present hard puncher Jorge "Destroyer" Meléndez (20-2-1, 20 KOs) against veteran Eric Mitchell (23-7-1, 11 KOs) for the WBO Latino junior middleweight title, and Javier Monserrate (24-1-1, 17 KOs) versus Javier Castro (25-4, 20 KOs) for the WBO Latino junior welter belt.

In a six round bout, cuban Yoelvis Gamboa (7-0, 3 KOs) will fight against Osenohan Vazquez (3-1, 2 KOs) in the lightweight division clash over four rounds, Israel “El Heredero” Vázquez (3-0-2, 3 KOs) versus debutant Jesús Pagán in the flyweight division; KennyRivera (1-0, 1 KO) will face Luis Ortiz (2-9) in the featherweights, and debutants Anaury Rijo and Pablo de Jesus will fight in the junior middleweights.

The 24th WBO Annual Convention is from October 24 to October 29 at the Ritz Carlton Hotel in Isla Verde, Carolina, Puerto Rico. Tickets for the card available at Ticketcenter 1 787792-5000 or www.tcpr.com . Prices are $25, $40, $78, $103, and $203.