Despite a slow start, Subriel Matias turns up the heat and forces Jeremias Ponce's corner to wave off the fight after the conclusion of the fifth round of their IBF World Junior Welterweight Championship. Matias wins by TKO5 and improves to 19-1 (19 KOs). Power-punching Subriel Matias showed why he’s become one of boxing’s most vaunted knockout artists as he stopped the previously unbeaten Jeremias Ponce after four rounds to win the vacant IBF 140-pound World Championship Saturday night live on SHOWTIME from The Armory in Minneapolis. Puerto Rico’s Matias (19-1, 19 KOs) captured the title in an electric firefight that saw the two top-ranked super lightweights throw over 800 combined punches in five rounds according to CompuBox. For Matias, the victory culminated a long journey that had him away from his family for nearly a year as he trained in Mexico for his first title opportunity. “I'm on cloud nine right now,” said Matias. “I don't think I've woken up from this dream. Maybe I ca