Ernesto Mercado TKO3 Deiner Berrio ... Junior welterweight hopeful Ernesto Mercado demolished Deiner Berrio last Friday at the Red Bowl Boxing Arena in Houston with a third-round technical knockout. Mercado got the stoppage win after his opponent decided not to come out for the fourth round following the punishment he had received. “Tito”, as the 22-year-old fighter is nicknamed, was aggressive from the first moment and forced his opponent to go backwards during the course of the fight. In the third round he gave a good punishment to the Colombian, whose team decided not to allow him to come out for the fourth chapter. Mercado  has a perfect record after 15 fights, with 14 knockouts, while Berrio now has a record of 22 wins, 5 losses, 1 draw and 13 knockouts.