Sherdog Official Mixed Martial Arts Rankings

Heavyweight

1. Fedor Emelianenko (31-1, 1 NC)
It seemed fairly straightforward that Emelianenko would stake his heavyweight supremacy against Brazilian Fabricio Werdum at Strikeforce’s second CBS offering on April 17. However, a contract squabble between Strikeforce and M-1, which represents Emelianenko, means early summer is the likely time for the bout.

2. Brock Lesnar (4-1)
While no one knows exactly how Lesnar will look in his return to the cage after his bout with diverticulitis, we do know his foe. Come July 3, he will take on Shane Carwin to unify the UFC heavyweight mantle in what should be a blockbuster match for the UFC.

3. Cain Velasquez (8-0)
Whether one wants to call it a passing of the torch or a coming-out party, Velasquez’s performance against Antonio Rodrigo Nogueira at UFC 110 was short and brutal. In less than half a round, Velasquez destroyed one of MMA’s most historically outstanding heavyweights in easily his most impressive performance to date.

4. Shane Carwin (12-0)
It took almost four minutes -- an eternity by his usual standards -- but at UFC 111 in Newark, N.J., Carwin blew off Frank Mir’s doors in the first round to claim the UFC interim heavyweight title. However, the real championship will be contested July 3, when Carwin meets Brock Lesnar at UFC 116.

5. Frank Mir (13-5)
Mir entered his March 27 bout with Shane Carwin as a slight betting favorite. However, he looked none the part in the cage, as Carwin bashed him with left hands in the clinch and decimated the former UFC champion to take the promotion’s interim title. With it, Carwin took Mir’s chance for a rubber match with Brock Lesnar.

6. Junior dos Santos (11-1)
Dos Santos’ March 21 bout with Gabriel Gonzaga was supposed to be a sterner test for the hot Brazilian prospect. However, it was business as usual for “Cigano,” who used his boxing ability to turn out the lights on “Napao” and firmly entrench himself in the UFC heavyweight title race.

7. Antonio Rodrigo Nogueira (32-6-1, 1 NC)
“Minotauro” had an army of backers who felt the former Pride and UFC heavyweight champion would put on a vintage performance against Cain Velasquez at UFC 110. However, post-fight discussion centered on whether or not Nogueira still has the physical tools to hang with young, elite heavyweights after Velasquez polished him off in a little more than two minutes.

8. Brett Rogers (10-1)
Despite the fact that Rogers was taken out by Fedor Emelianenko in November, “The Grim” will get the chance to vie for the Strikeforce heavyweight crown on May 15. Rogers will take on champion Alistair Overeem, who makes his long-awaited return to the promotion after capturing its heavyweight title in November 2007.

9. Andrei Arlovski (15-7)
The former UFC champion has not seen action since June, when he lasted just 22 seconds against Brett Rogers. However, Arlovski has inked a deal with Strikeforce that will get him back into the cage soon. “The Pitbull” will take on Antonio Silva on May 15 in St. Louis.

10. Fabricio Werdum (13-4-1)
Werdum will have to wait another couple of months to fight for MMA’s heavyweight mantle. He expected to meet heavyweight kingpin Fedor Emelianenko in April, but the Russian’s contract dispute with Strikeforce means that “Vai Cavalo” will have to sit pretty until the early summer.

Other contenders: Josh Barnett, Roy Nelson, Alistair Overeem, Ben Rothwell, Antonio Silva.