VIDEO: Irene Aldana Knocks Out Ketlen Vieira With Vicious Left Hook at UFC 245
By Chris Pyo

The women's undercard bantamweight bout at UFC 245 was a very good warmup for some of our more-anticipated fights on Saturday night, as Irene Aldana knocked out Ketlen Vieira with a nasty-looking left hook with ten seconds left in the first round to get the win via KO/TKO.
OHHHHHHHHH! ?
— UFC (@ufc) December 15, 2019
Picture perfect left hook from @IreneAldana_! #UFC245
? Watch LIVE on ESPN 2 NOW! pic.twitter.com/bcp4I5x7Vu
Honestly, the crowd's reaction says it all right there. Everyone in the arena instantaneously goes from a two to a ten as the match is declared over by the referee.
Vieira was left on the ground for a good minute after that devastating punch, with Aldana kneeling about five yards away from her and looking a bit concerned for her opponent. Either way, Aldana moves to 12-5, while Vieira suffers the first loss of her career and is now 10-1.