Gabriel Flores Jr., Elvis Rodriguez and Xander Zayas score big wins to stay unbeaten Gabriel Flores Jr., Elvis Rodriguez and Xander Zayas score big wins to stay unbeaten Junior lightweight Gabriel Flores Jr., left, dropped Jayson Velez twice in Round 6 en route to a stoppage victory. Mikey Williams/Top Rank Inc. via Getty Images LAS VEGAS -- Gabriel Flores Jr. isn't really known as a power puncher, but you wouldn't know that from the conclusion of his junior lightweight bout on the Miguel Berchelt-Oscar Valdez undercard Saturday night at the MGM Conference Center in Las Vegas. Flores (20-0, 7 KOs) dropped the hammer on Puerto Rico's Jayson Velez (29-8-1, 21 KOs), as he knocked Velez to the ground with a punishing left hook counter in the sixth round, and finished him off with a flurry along the ropes at the 1:47 mark. It was Flores' first knockout in seven appearances dating back to 2015.