Minnesota Vikings running back Adrian Peterson, right, shakes hands with Carolina Panthers quarterback Cam Newton following a 35-10 Panthers win in an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. One of Peterson's sons, a 2-year-old in South Dakota, died Friday after an alleged attack in a child abuse case.(AP Photo/Ann Heisenfelt)

Carolina Panthers fullback Mike Tolbert, right, breaks the tackle of Minnesota Vikings cornerback Xavier Rhodes to score a touchdown during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Ann Heisenfelt)

Carolina Panthers outside linebacker Thomas Davis, left, chases down Minnesota Vikings quarterback Matt Cassel (16) as he runs during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Ann Heisenfelt)

Carolina Panthers fullback Mike Tolbert bowls the football as he celebrates his rushing touchdown against the Minnesota Vikings during the second half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Jim Mone)

Carolina Panthers guard Chris Scott (75) and wide receiver Steve Smith (89) watch fullback Mike Tolbert celebrates a touchdown against the Minnesota Vikings during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Ann Heisenfelt)

Minnesota Vikings running back Adrian Peterson, right, is tackled by Carolina Panthers middle linebacker Luke Kuechly during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Ann Heisenfelt)

Minnesota Vikings running back Adrian Peterson runs against the Carolina Panthers during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Ann Heisenfelt)

Carolina Panthers quarterback Cam Newton, (1) and wide receiver Steve Smith celebrate a touchdown pass to Smith during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Jim Mone)

Carolina Panthers running back DeAngelo Williams, left, pushes off Minnesota Vikings strong safety Jamarca Sanford as he picks up yardage during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Jim Mone)

Carolina Panthers wide receiver Steve Smith crosses his arms after a touchdown catch against the Minnesota Vikings during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Ann Heisenfelt)

Carolina Panthers quarterback Cam Newton, right, is sacked by Minnesota Vikings outside linebacker Chad Greenway during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Jim Mone)

Minnesota Vikings running back Adrian Peterson leaves the field during the first half of an NFL football game against the Carolina Panthers in Minneapolis, Sunday, Oct. 13, 2013. One of the star running back's sons, a 2-year-old in South Dakota, died Friday after an alleged attack in a child abuse case.(AP Photo/Ann Heisenfelt)

Minnesota Vikings quarterback Matt Cassel throws against the Carolina Panthers during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Michael Conroy)

Carolina Panthers free safety Mike Mitchell, left, is tackled by Minnesota Vikings center John Sullivan after an interception during the first half of an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. (AP Photo/Jim Mone)

Minnesota Vikings running back Adrian Peterson, right, joins tight end Kyle Rudolph for a National Anthem before an NFL football game in Minneapolis, Sunday, Oct. 13, 2013. One of Peterson's sons, a 2-year-old in South Dakota, died Friday after an alleged attack in a child abuse case.(AP Photo/Jim Mone)