Former champion and San Antonio-native Mario “El Azteca” Barrios snapped his two-fight losing streak with a razor sharp, career-rejuvenating performance against Jovanie Santiago in Saturday’s co-feature. Barrios dropped Santiago in the eighth round with a left to the body and followed up, causing referee Mark Calo-Oy, upon the request of Santiago’s corner, to stop the fight at 1:42 of the eighth of their welterweight contest scheduled for 10 rounds. Barrios led 70-63 on all three judges’ scorecards at the time of the stoppage. After Santiago (14-3-1, 10 KOs) touched the canvas for the fourth time of his career from the body shot, Barrios, who is back with top trainer Bob Santos, followed up with a straight right hand that snapped Santiago’s head back, causing his corner to step in. After losing his last two fights to top talents Gervonta Davis and Keith Thurman, Barrios (27-2, 18 KOs) had his way with Santiago, who was also coming off back-to-back losses to Adrien Broner and Gary Ant