National Football League Commissioner Roger Goodell, right, greets fans before an NFL game between the Minnesota Vikings and the Tennessee Titans, Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Charlie Neibergall)

Tennessee Titans running back Chris Johnson, left, tries to break a tackle by Minnesota Vikings defensive tackle Kevin Williams, right, during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Jim Mone)

Tennessee Titans running back Chris Johnson, left, tries to break a tackle by Minnesota Vikings defensive tackle Letroy Guion during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Genevieve Ross)

Minnesota Vikings running back Adrian Peterson, right, runs from Tennessee Titans defensive tackle Jurrell Casey, left, during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Genevieve Ross)

Tennessee Titans quarterback Matt Hasselbeck, center, scrambles between Minnesota Vikings defensive end Brian Robison, second from left, and defensive end Jared Allen (69) during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Genevieve Ross)

Minnesota Vikings wide receiver Percy Harvin (12) celebrates after scoring a touchdown during the first half of an NFL football game against the Tennessee Titans, Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Jim Mone)

Tennessee Titans tight end Craig Steven, top,s leaps over Minnesota Vikings safety Jamarca Sanford (33) after making a reception during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Jim Mone)

Tennessee Titans running back Chris Johnson, left, fumbles the ball in front of Minnesota Vikings linebacker Erin Henderson (50) during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings cornerback Chris Cook, right, tackles Tennessee Titans running back Chris Johnson during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Genevieve Ross)

Minnesota Vikings running back Toby Gerhart, top, is tackled by Tennessee Titans safety Jordan Babineaux, right, during the second half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings defensive end Jared Allen, top, sacks Tennessee Titans quarterback Matt Hasselbeck (8) during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Genevieve Ross)

Tennessee Titans safety Michael Griffin, right, breaks up a pass intended for Minnesota Vikings wide receiver Michael Jenkins (84) during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Genevieve Ross)

Minnesota Vikings wide receiver Percy Harvin, right, runs from Tennessee Titans' Jason McCourty, left, and Akeem Ayers, center, after making a reception during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. The Vikings won 30-7. (AP Photo/Genevieve Ross)

Minnesota Vikings wide receiver Percy Harvin, center, reacts with fans after catching a 10-yard touchdown pass during the second half of an NFL football game against the Tennessee Titans, Sunday, Oct. 7, 2012, in Minneapolis. The Vikings won 30-7. (AP Photo/Jim Mone)

Tennessee Titans cornerback Tommie Campbell sits on the bench during the second half of an NFL football game against the Minnesota Vikings, Sunday, Oct. 7, 2012, in Minneapolis. The Vikings won 30-7. (AP Photo/Jim Mone)

Minnesota Vikings running back Adrian Peterson walks off the field after an NFL football game against the Tennessee Titans, Sunday, Oct. 7, 2012, in Minneapolis. The Vikings won 30-7. (AP Photo/Genevieve Ross)

Minnesota Vikings wide receiver Percy Harvin (12) runs off the field after an NFL football game against the Tennessee Titans, Sunday, Oct. 7, 2012, in Minneapolis. The Vikings won 30-7. (AP Photo/Genevieve Ross)

Minnesota Vikings head coach Leslie Frazier questions a call during the first half of an NFL football game against the Tennessee Titans, Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Genevieve Ross)

Minnesota Vikings tight end Kyle Rudolph, left, celebrates with teammate quarterback Christian Ponder, right, after catching a 15-yard touchdown pass during the second half of an NFL football game against the Tennessee Titans, Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Jim Mone)

Tennessee Titans safety Jordan Babineaux, right, runs from Minnesota Vikings running back Toby Gerhart (32) after intercepting a pass during the second half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. Titans linebacker Colin McCarthy (52) blocks on the play. (AP Photo/Genevieve Ross)

Tennessee Titans head coach Mike Munchak looks on during the first half of an NFL football game against the Minnesota Vikings, Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Jim Mone)

Minnesota Vikings wide receiver Percy Harvin (12) breaks a tackle by Tennessee Titans linebacker Colin McCarthy, left, during the first half of an NFL football game on Sunday, Oct. 7, 2012, in Minneapolis. (AP Photo/Genevieve Ross)