In an exciting action clash, veteran Panamanian slugger Luis "Nica" Concepcion rocked and stopped tough Colombian Rober Barrera (23-3, 13 KO's) in the 11th chapter of their thrilling battle to capture the vacant WBA Interim Flyweight Title tonight at the Roberto Duran Arena in Panama City, Panama.

The always dangerous "Nica" Concepcion absorbed tough hands sent by the hard-swinging Barrera, but the Colombian could not handle Concepcion's brutal eleventh round one-two combination that propelled him spiraling backwards all the way down to the grey canvas near by the red corner.

The brave Barrera managed to come back up from the floor, but a renewed furious attack powered by Concepcion pinned the already wounded Colombian against the ropes where he was forced to take additional lethal blows to the head till Puerto Rican Hall-of-Famer third man Rafael Ramos halted actions to spare Barrera from unnecessary violence.

After his title win, Concepcion (39-8, 28 KO's) celebrated victory by climbing to the red corner's top rope from where he performed a back-flip jump, flying over the referee.

The victory opens the door for Concepcion to battle WBA "regular" Flyweight Champion

MORE RESULTS: RIVAS AND MATELLON CLAIM WBA BELTS

In other results, veteran Venezuelan fight lady Mayerlin Rivas captured the WBA female 122 pound belt by decisioning Laura Ledezma, scores were unanimous for the more dominating Rivas. The third woman in the ring was Panamanian referee lady Ms. Aida Tejada.

In another world title clash, unbeaten Cuban Daniel Matellón (11-0-2, 6 KO's) became the new WBA Interim Light Flyweight champion by scoring a majority decision win over Mexican Erik “Habanerito” López. The referee was Puerto Rican Luis Pabon.

The action fights were all part of tonight's 36th edition to the "WBA KO to Drugs Festival" at the Roberto Duran Arena in Panama.

The author Carlos Costa of Panama is a boxing reporter living in the Philippines. Carlos can be reached at carlos512@hotmail.com and whatsapp +639184538152.