3.) Andrei Arlovski vs. Travis Browne – UFC 187:

This matchup between two of the heavyweight division’s most powerful sluggers may quite possibly be the greatest one-round UFC bout in history.

Former heavyweight titleholder “Pitbull” came into the fight with two wins over Brendan Schaub and Antonio “Bigfoot” Silva in his return to the octagon, and Browne needed to regain the momentum he had lost by exhibiting up-and-down results in his previous two fights. That resulted in both fighters laying it all on the line in a barroom brawl-inspired slugfest, with each one taking their lumps and getting dropped at one point or another.

In the end, Arlovski pulled off the huge knockout in probably the most exciting non-title fight of 2015, further etching himself into UFC history and sending Browne back down the ladder to answer the question of whether or not leaving Greg Jackson’s camp was the right decision.