Roy Nelson and Antônio Rodrigo Nogueira headlined UFC Fight Night 39 in Abu Dahbi on Friday afternoon. If you had UFC Fight Pass, you could have watched as Nelson landed one of his famous right hands flush in the face of Big Nog, knocking him out cold. It was a walk-off KO for Nelson who had dropped his last two fights. For Big Nog, it was probably should be the final fight of his career. Nog turns 38 in June and has dropped two straight, 3 of 4, 4 of 6 and 5 of 8 with 3 of those losses coming by knockout.