When you ask coordinators or players about defending Adrian Peterson, they break into footballspeak. They throw out terms such as eight men in the box, gap control and gang tackling. It's easy to talk the talk but difficult to walk the walk.

As a rookie with the Vikings last season, Peterson rushed 238 times for 1,341 yards -- second only to LaDainian Tomlinson, who had 77 more carries than Peterson but only 133 more yards. Peterson eclipsed 100 yards in a game six times, including » Full column

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