Minnesota Vikings wide receiver Jerome Simpson (81) catches a Christian Ponder pass as Detroit Lions cornerback Bill Bentley (28) defends in the second half of an NFL football game in Detroit Sunday, Sept. 30, 2012. (AP Photo/Paul Sancya)

Detroit Lions quarterback Matthew Stafford (9) scrambles away from Minnesota Vikings defensive end Jared Allen (69) during the first quarter of an NFL football game at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Carlos Osorio)

Minnesota Vikings' Percy Harvin (12) returns the opening kick for a touchdown during the first quarter of an NFL football game against the Detroit Lions at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Carlos Osorio)

Minnesota Vikings cornerback Chris Cook (20) and strong safety Jamarca Sanford (33) interfere with Detroit Lions wide receiver Calvin Johnson (81) during the first quarter of an NFL football game at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Carlos Osorio)

Detroit Lions defensive tackle Ndamukong Suh runs onto the field during player introductions before an NFL football game against the Minnesota Vikings at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Carlos Osorio)

Minnesota Vikings' Percy Harvin returns the opening kickoff for a touchdown during the first quarter of an NFL football game against the Detroit Lions in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Rick Osentoski)

Minnesota Vikings quarterback Christian Ponder (7) passes the ball during the first half against the Detroit Lions in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Rick Osentoski)

Minnesota Vikings quarterback Christian Ponder (7) passes the ball as Detroit Lions defensive end Cliff Avril (92) rushes during the first half in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Rick Osentoski)

Detroit Lions wide receiver Nate Burleson (13) is brought down by Minnesota Vikings cornerbacks Josh Robinson (21) and Antoine Winfield (26) in the 1st half of an NFL football game against the Detroit Lions in Detroit Sunday, Sept. 30, 2012. (AP Photo/Paul Sancya)

Detroit Lions defensive end Cliff Avril celebrates sacking Minnesota Vikings quarterback Christian Ponder in the 1st half of an NFL football game against the Detroit Lions in Detroit Sunday, Sept. 30, 2012. (AP Photo/Paul Sancya)

Detroit Lions quarterback Matthew Stafford (9) is tackled by Minnesota Vikings middle linebacker Jasper Brinkley, right, after a 1-yard gain in the first quarter of an NFL football game Sunday, Sept. 30, 2012, in Detroit. (AP Photo/Duane Burleson)

Minnesota Vikings' Marcus Sherels (35) returns a punt for a touchdown during the third quarter of an NFL football game against the Detroit Lions at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Carlos Osorio)

Minnesota Vikings' Marcus Sherels (35) is congratulated by teammates after returning a punt for a touchdown during the third quarter of an NFL football game against the Detroit Lions at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Carlos Osorio)

Minnesota Vikings outside linebacker Marvin Mitchell (55) and punter Chris Kluwe (5) take down Detroit Lions' Stefan Logan (11) as he returns a punt during the third quarter of an NFL football game against the Minnesota Vikings at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Carlos Osorio)

Minnesota Vikings strong safety Jamarca Sanford celebrates recovering a Detroit Lions running back Mikel Leshoure fumble in the second half of an NFL football game against the Detroit Lions in Detroit Sunday, Sept. 30, 2012. (AP Photo/Paul Sancya)

Minnesota Vikings wide receiver Jerome Simpson, left, reaches out to make a 27-yard reception against Detroit Lions cornerback Bill Bentley (28) in the fourth quarter of an NFL football game Sunday, Sept. 30, 2012, in Detroit. The Vikings defeated the Lions 20-13. (AP Photo/Duane Burleson)

Minnesota Vikings cornerback Josh Robinson pumps his fist after the Vikings' 20-13 win over the Detroit Lions in an NFL football game Sunday, Sept. 30, 2012, in Detroit. (AP Photo/Duane Burleson)

Detroit Lions quarterback Matthew Stafford (9) rolls out to pass as Minnesota Vikings defensive end Jared Allen (69) pressures I'm during the third quarter at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Rick Osentoski)

Minnesota Vikings defensive end Everson Griffen (97) sacks Detroit Lions quarterback Matthew Stafford for a loss in the first half of an NFL football game against the Detroit Lions in Detroit Sunday, Sept. 30, 2012. (AP Photo/Paul Sancya)

Minnesota Vikings running back Adrian Peterson (28) drags Detroit Lions middle linebacker Stephen Tulloch (55) as he runs the ball during the second half at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Rick Osentoski)

Detroit Lions quarterback Matthew Stafford jumps over the pile for a one-yard touchdown in the second half of an NFL football game against the Minnesota Vikings in Detroit Sunday, Sept. 30, 2012. (AP Photo/Paul Sancya)

Detroit Lions running back Mikel Leshoure (25) is forceD out of bounds by Minnesota Vikings middle linebacker Jasper Brinkley (54) during the fourth quarter at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Rick Osentoski)

Minnesota Vikings nose tackle Fred Evans (90) blocks a pass by Detroit Lions quarterback Matthew Stafford (9) during the second half at Ford Field in Detroit, Sunday, Sept. 30, 2012. (AP Photo/Rick Osentoski)

Minnesota Vikings coach Leslie Frazier shouts instructions from the sidelines in the second half of an NFL football game against the Detroit Lions, Sunday, Sept. 30, 2012, in Detroit. The Vikings won 20-13. (AP Photo/Duane Burleson)