Tai Tuivasa didn’t have a long night at the office. The heavyweight needed just 49 seconds to walk away with his fifth UFC win with a TKO of Harry Hunsucker (7-4 MMA, 0-1 UFC) in the first round of their main card fight at UFC on ESPN 21 in Las Vegas. Tuivasa (12-3 MMA, 5-3 UFC) made quick work of Hunsucker. He connected with a hard leg kick in the first exchange that seemed to hurt Hunsucker, then followed up with a combination that sent Hunsucker straight to the canvas. From there, Tuivasa followed up with ground-and-pound and quickly after the referee was forced to stop the fight (via Twitter ).