Former boxer and kickboxer Holly Holm came into UFC 193 against Ronda Rousey as a massive underdog for the bantamweight crown and shocked the world with a vicious second round knockout.
Holm hit Rousey with jab after jab and teed off on the champ's head before sending her to sleep with a nasty head kick.
This is the first loss in Rousey's UFC tenure, falling to 12-1, while Holm moves to 10-0.
This post was originally published on November 15, 2015, but this knockout is so good that we had to relive it once again.
