9. Rousey-Holm (UFC 193)

best-ufc-fights-9
Image Source

Coming into this bout, all the talk was about how long it would last. Would Rousey knock Holm out in seconds? Would it take over a minute? After the fight, all the talk was about when Rousey would be able to fight again…

10. Henderson-Rua (UFC 139)

best-ufc-fights-10
Image Source

If you want to see what an out-and-out slugfest looks like in the UFC, then go look up footage of this match. From the opening bell to the final round, these two gave everything they had. Dan Henderson may have notched the win, but they both sent one another to the hospital that night.