A couple of workhorses

Posted by ESPN.com's Kevin Seifert
You could make an argument that Sunday night's showdown at the Metrodome will feature two of the NFL's three most important players to their respective teams.

Chicago tailback Matt Forte and Minnesota tailback Adrian Peterson rank No. 2 and No. 3 in an obscure but meaningful statistic, according to the Bears' public relations department. Forte has accounted for 34.73 percent of the Bears' total yards from scrimmage, while Peterson is close behind at 34.33 percent.

The only NFL player with a higher percentage of his team's offensive yards is Washington's Clinton Portis, who has 34.99 percent.

It's no secret that Forte and Peterson are critical players, but this ranking lets you know how much they've contributed relative to other prominent players. Here's a full ranking of the top five players in this category: