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12 Rounds with Andre Ward: Miguel Berchelt vs. Oscar Valdez -- who has the edge?

Miguel Berchelt, left, defends his WBC junior lightweight world title against Oscar Valdez, right, on Saturday. ESPN Illustration

Miguel Berchelt and Oscar Valdez will finally meet on Saturday for Berchelt's WBC 130 pound title and bragging rights. The fighters have history, dating back to their time together on the Mexican National Boxing team.

Berchelt has always felt slighted that the Mexican Boxing Federation chose Oscar Valdez over him without giving him the opportunity to fight and potentially earn his spot in the 2012 Olympic Games in London. Valdez has always maintained that things didn't quite happen that way. Either way it's now water under the bridge, and both fighters have the opportunity to settle any lingering differences that they might have.

Here's my breakdown of 12 essential categories that give us a glimpse into who may have the advantages going into their showdown (ESPN, Sat., 10 p.m. ET).

Round 1: Power