Top 5: Greatest Knees in UFC History

A lot can happen in a few seconds.

Jorge Masvidal posted the fastest knockout in Ultimate Fighting Championship history at UFC 239, where he froze former Bellator MMA and ONE Championship titleholder Ben Askren with a flying knee in the first round of their welterweight showcase on July 6, 2019 at T-Mobile Arena in Las Vegas. Masvidal sent the four-time NCAA All-American wrestler and onetime Olympian into another dimension five seconds into Round 1.

Askren shot for takedown right out of the gate and paid an unimaginably steep price. Masvidal took flight, beat him to the spot and connected with full force, the impact of the concussive blow echoing through a stunned arena. Askren fell to the…