By Rafael Soto

Tijuana, Mexico, Foro Tecate - In his first fight since suffering the knockout loss to Adrien Broner, Mexico's rugged warrior Antonio "Tony" DeMarco (29-3-0, 26 KOs) entered the junior welterweight ranks with a fifth round knockout of Colombian Fidel Monterrosa (31-8-0, 25 KO's), who went down at 1:21 of the round. Monterrosa had his moments in the contest. There was a bad head clash in the third, which left damage on both but cut DeMarco on his forehead above his left eye. DeMarco had his opponent going at the end of the fourth, and picked back up in the fifth with a shot to the liver that sent Monterrosa down. He barely made it up at nine and the referee waved things off.

In the co-feature, Daniel "Bad Boy" Rosas punished Robert Castaneda. After starting fast, Rosas (16-0-1, 11 KOs) crushed Castaneda (20-4-0, 15 KO's) with a single shot in the opening seconds of the second to score the stoppage victory.

Also on the show Raul Hirales Jr. won an eight round unanimous decision over Carlos "Butcher" Medellin in an entertaining eight round fight at super bantamweight. Hirales (19-2-0, 8 KOs) was the one who took the initiative, who dictated the pace and the distance, while Medellin (20-15-0, 16 KO's) was always dangerous, especially when the fight was was contested at a short distance. All three judges agreeing with a score of 79-73 for Hirales.