Boxer Buster Douglas

Why do people love seeing an underdog defy the odds? Because no one thinks they can do it.

Seeing teams pull off the impossible is glorifying in some aspects: not only does a team that wasn’t “supposed” to win take home a victory, but the top dog is knocked off its throne.

Upsets are great for sports, unless your favorite team is on the losing end.

Holly Holm’s shocking knockout of previously undefeated UFC star Ronda Rousey on Saturday prompted us to take a look back at some of the best upsets the sports world had to offer.

Click to see the top 10 best upsets in sports >>

Thumbnail photo via Twitter/@AdrianDelorey