San Diego Chargers quarterback Philip Rivers (17) throws against the Minnesota Vikings in the first half of an NFL football game in Minneapolis, Sunday, Sept. 27, 2015. (AP Photo/Jim Mone)

Minnesota Vikings running back Adrian Peterson (28) breaks away from San Diego Chargers strong safety Jimmy Wilson (27) in the first half of an NFL football game in Minneapolis, Sunday, Sept. 27, 2015. (AP Photo/Andy Clayton-King)

Minnesota Vikings running back Adrian Peterson (28) cuts in front of San Diego Chargers inside linebacker Donald Butler (56) in the first half of an NFL football game in Minneapolis, Sunday, Sept. 27, 2015. (AP Photo/Andy Clayton-King)

Minnesota Vikings' Blair Walsh (3) kicks a field goal from the hold of punter Jeff Locke (18) in the first half of an NFL football game against the San Diego Chargers in Minneapolis, Sunday, Sept. 27, 2015. (AP Photo/Jim Mone)

San Diego Chargers cornerback Steve Williams (23) intercepts a pass in front of Minnesota Vikings wide receiver Charles Johnson (12) in the first half of an NFL football game in Minneapolis, Sunday, Sept. 27, 2015. (AP Photo/Andy Clayton-King)

Minnesota Vikings defensive end Everson Griffen (97) celebrates a sack against San Diego Chargers quarterback Philip Rivers in the first half of an NFL football game in Minneapolis, Sunday, Sept. 27, 2015. (AP Photo/Jim Mone)

San Diego Chargers wide receiver Keenan Allen (13) celebrates with Steve Johnson after scoring a touchdown against the Minnesota Vikings in the first half of an NFL football game in Minneapolis, Sunday, Sept. 27, 2015. (AP Photo/Andy Clayton-King)

Minnesota Vikings defensive end Everson Griffen (97) sacks San Diego Chargers quarterback Philip Rivers (17) in the first half of an NFL football game in Minneapolis, Sunday, Sept. 27, 2015. (AP Photo/Jim Mone)

Minnesota Vikings outside linebacker Chad Greenway (52) runs for a touchdown after an interception of a pass from San Diego Chargers quarterback Philip Rivers (17) in the second half of an NFL football game in Minneapolis, Sunday, Sept. 27, 2015. (AP Photo/Andy Clayton-King)

San Diego Chargers head coach Mike McCoy yells to an official in the second half of an NFL football game against the Minnesota Vikings in Minneapolis, Sunday, Sept. 27, 2015. (AP Photo/Jim Mone)

Minnesota Vikings outside linebacker Chad Greenway (52) intercepts a pass from San Diego Chargers quarterback Philip Rivers (17) in the second half of an NFL football game in Minneapolis, Sunday, Sept. 27, 2015. Greenway scored a touchdown on the play. (AP Photo/Andy Clayton-King)