When Robson Conceicao challenged Oscar Valdez for a 130-pound title in September, he wilted down the stretch in a controversial decision loss. In his first bout since the first pro defeat of his career, Conceicao fought far more aggressively and dominated en route to a unanimous-decision triumph over Xavier Martinez on Saturday in Tulsa, Oklahoma. The judges scored the bout 98-92, 99-91 and 100-90. With the impressive performance in the 10-round ESPN main event, Conceicao (17-1, 8 KOs), 33, set himself up for another title opportunity at 130 pounds. “I was able to be dominant this evening because I put […]