After earning a UFC contract through Dana White’s Contender Series, Vallejos (15-1 MMA, 1-0 UFC) made a major first impression when he hurt Choi (11-6 MMA, 4-5 UFC) with a massive punch then swarmed for the TKO at the 3:09. mark of Round 1.

Kevin Vallejos is definitely a name to watch after he made a splashy debut with a devastating knocout at UFC Vegas 104. The 23-year-old Contender Series veteran lived up to the hype as he blasted Seung Woo Choi with a huge overhand right that sent the South Korean fighter crashing to the canvas.