MMA's 10 best pound-for-pound fighters

For 7½ years, Fedor Emelianenko was a fixture in the rarefied air of pound-for-pound lists. Not anymore.

Emelianenko's shocking June 26 loss to Fabricio Werdum radically resculpted the face of the heavyweight division and the pound-for-pound list. For the first time since its inception, Sherdog.com's P4P rankings features no heavyweights. Perhaps none too surprisingly, the vast majority of the list now represents MMA's deepest and most competitive weight classes. In fact, six of the 10 entrants are fixtures at 155, 170 or 205 pounds. Furthermore, middleweights Anderson Silva and Jake Shields can claim recent accomplishments at 205 and 170 pounds, respectively.

And although July will be a quiet month, August won't be. Half the pound-for-pound top 10 will see August action, including Silva defending the P4P mantle when he meets Chael Sonnen, Jon Fitch renewing his rivalry with Thiago Alves in a high-stakes welterweight rematch, and lightweight entrants B.J. Penn and Frankie Edgar settling their score -- with the UFC lightweight title on the line.