Forget about Fedor Emelianenko's loss to Antonio Silva on Saturday, because the Russian is still among the greatest MMA fighters alive. But as great as he is, Emelianenko didn't crack our Top 5 best pound-for-pound fighters in the world.

5. Cain Velasquez
Heavyweights don’t always get their due in this category, but Velasquez has earned his place here. Whoever faces this undefeated champion, even after his successful rotator cuff surgery, should beware: he’s never lost a round, and his technique and speed are excellent. Fiveknuckles.com
4. Jose Aldo
“The Smiling Squirrel” is usually the only one smiling after one of his fights. The featherweight has won his last 11 fights, and will continue to succeed due to his lightning quick hands and feet. mmatrainingworkoutsonline.com
3. Mauricio Rua
The light heavyweight won a devastating knockout of Brazilian countryman Lyoto Machida in May, and faces Jon Jones this coming March. His flying stomps are legendary. Octagonbuzz.com
1. Anderson Silva
The Middleweight Champion and arguably the greatest mixed martial artist of all time Reuters