How it unfolded
Anderson Silva was 2,457 days into his middleweight championship reign, riding a 16-fight UFC win streak with ten consecutive title defenses. Challenger Chris Weidman was undefeated at 9-0 but carried little public support. In the first round, Weidman immediately scored a takedown, dropped elbows from top position and threatened a heel hook, unsettling Silva. In the second round, Silva answered with his trademark psychological games, dropping his hands completely, sticking out his chin to taunt his opponent, and even faking being hurt to stumble theatrically. Weidman bought into the act and stepped in with a left hook, landing flush on the temple just as Silva was leaning back. Silva went down, and after two follow-up strikes the fight was over at 1:18. In the rematch that December, Silva lost again after his shin snapped on a checked kick.
Why it still matters
This was the moment the sport's longest dynasty ended, and it exposed just how fragile an aura built on taunting an opponent can be. Middleweight gained a new lineage running from Weidman through Robert Whittaker to Israel Adesanya, and Silva's record reign remains the longest title reign in UFC history to this day.