Santos and Castaneda closed out the preliminary portion of Saturday’s UFC Vegas 61 event with a wild 140-pound catchweight battle.
After getting nearly finished by Castaneda in the first, Santos weathered the storm and pushed a ferocious pace in the second. While Castaneda was still having success, he was visually being overwhelmed by Santos’ pressure and toughness, and then ate a vicious — and loud — knee from Santos that sent him crashing to the mat to end the bout.
Check out video of the wild finish below.
It was quite a way for Santos — who shared a moment with event guest Mark Zuckerberg following the performance — to get his first octagon victory after dropping his promotional debut via unanimous decision to Julio Arce at UFC 273 in April. Prior to that, “Willycat” had won back-to-back bouts to earn his opportunity to compete in the UFC.
Castaneda’s UFC record drops to 2-2 after having his two-fight stoppage win streak snapped.