Five Knuckles.com has been hard at work implementing many new features for the site and we're very pleased to announce our new rankings section, headed up by none other than Greg Jackson of Jackson's Submission Fighting.

The section, "Jackson's Five", will list the world's top five fighters in each major weight division; all Jackson fighters notwithstanding for obvious reasons.

For those in the know, Jackson represents the absolute apex of professional mixed martial arts training and instruction. His camp has the highest win percentage of any major camp in the world and has expanded to encompass many of the world's greatest fighters. Needless to say, this guy knows talent.

So, with out further ado, we'd like to formally invite all of you to click here and check out our new monthly rankings section powered by Greg Jackson.