Seeing a team or individual “do the impossible” and cause a massive upset is one of the most entertaining aspects of sport, and people love nothing more than seeing an underdog come out on top. Not only is it inspirational to see a team or individual overcome the odds, but it can be fantastic to see the heavy favorite taken down a peg (unless it is your team, of course). Throughout sports history there have been some astonishing upsets which have shaken the sporting world to its core and shown that with hard work and belief, anything is possible
12. Holly Holm vs. Ronda Rousey (November 2015)
The incident that inspired this article, on the 14th of November 2015, the biggest upset in UFC history occurred when Holly Holm knocked out Ronda Rousey. Rousey had been labeled the female Mike Tyson and had won her first 12 fights, with 11 of these coming in just the first round, which led many to state that she is the best female fighter ever. Going into the fight, Holm was a 22-1 underdog just a few days before, despite the fact that she was a multiple time winning champion in boxing. Nobody gave her a chance, but straight away she proved a difficult opponent with her elusive fighting style. She landed a few punches, and then just a minute into the second round, she landed a brutal knockout kick for one of the biggest upsets in sports history. This has given the sport more attention than ever before.
http://www.foxsports.com.au/ufc/ronda-rousey-ufc-193-knockout-rigged-claims-former-wwe-champion-taz/story-fnfmik1h-1227613572207 Source: Foxsports.com.au