Minnesota Vikings running back Adrian Peterson (28) reacts as he's driven off the field after an injury during the second half of an NFL football game against Washington Redskins in Landover, Md., ... more 
Minnesota Vikings running back Adrian Peterson (28) reacts as he's driven off the field after an injury during the second half of an NFL football game against Washington Redskins in Landover, Md., Saturday, Dec. 24, 2011. (AP Photo/Evan Vucci) less 
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Associated Press | Photo By Evan Vucci
Sat, Dec 24, 2011 11:44 PM EST