Arizona Cardinals cornerback Patrick Peterson (21) celebrates during the NFL week 1 game between the San Diego Chargers and the Arizona Cardinals on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

Arizona Cardinals cornerback Patrick Peterson (21) celebrates during the NFL week 1 game between the San Diego Chargers and the Arizona Cardinals on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

San Diego Chargers running back Ryan Mathews (24) is tackled by Arizona Cardinals inside linebacker Larry Foote (50) during the NFL week 1 game on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

San Diego Chargers wide receiver Keenan Allen (13) reaches for the ball against Arizona Cardinals cornerback Patrick Peterson (21) during the NFL week 1 game on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

Arizona Cardinals quarterback Carson Palmer (3) looks to pass against the San Diego Chargers during the NFL week 1 game on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

Arizona Cardinals quarterback Carson Palmer (3) throws during the NFL week 1 game between the San Diego Chargers and the Arizona Cardinals on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

San Diego Chargers wide receiver Eddie Royal (11) runs after the catch during the NFL week 1 game between the San Diego Chargers and the Arizona Cardinals on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

San Diego Chargers quarterback Philip Rivers (17) at the line of scrimmage during the NFL week 1 game between the San Diego Chargers and the Arizona Cardinals on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

San Diego Chargers tight end Antonio Gates (85) is tackled by Arizona Cardinals free safety Rashad Johnson (26) during the NFL week 1 game on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

Arizona Cardinals inside linebacker Larry Foote (50) celebrates his sack during the NFL week 1 game between the San Diego Chargers and the Arizona Cardinals on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

San Diego Chargers quarterback Philip Rivers (17) drops back during the NFL week 1 game between the San Diego Chargers and the Arizona Cardinals on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

San Diego Chargers outside linebacker Jeremiah Attaochu (97) dives for a loose ball during the NFL week 1 game between the San Diego Chargers and the Arizona Cardinals on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

Arizona Cardinals tight end John Carlson (89) is hit by San Diego Chargers cornerback Shareece Wright (29) during the first half of an NFL football game, Monday, Sept. 8, 2014, in Glendale, Ariz. (AP Photo/Matt York)

Arizona Cardinals quarterback Carson Palmer (3) throws against the San Diego Chargers during the first half of an NFL football game, Monday, Sept. 8, 2014, in Glendale, Ariz. (AP Photo/Matt York)

San Diego Chargers head coach Mike McCoy, right, talks with Arizona Cardinals head coach Bruce Arians prior to an NFL football game Monday, Sept. 8, 2014, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals running back Andre Ellington (38) runs up the field against the San Diego Chargers during the NFL week 1 game on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

San Diego Chargers quarterback Philip Rivers (17) stand behind his offensive line during the NFL week 1 game against the Arizona Cardinals on Monday, Sept. 8, 2014 at University of Phoenix Stadium in Glendale. (Ric Tapia/NFL)

San Diego Chargers' Philip Rivers tosses his helmet after failing to get a first down on the final possession against the Arizona Cardinals during the second half of an NFL football game Monday, Sept. 8, 2014, in Glendale, Ariz. The Cardinals defeated the Chargers 18-17. (AP Photo/Ross D. Franklin)

San Diego Chargers wide receiver Keenan Allen (13) can't hold onto the ball on fourth down as Arizona Cardinals cornerback Patrick Peterson (21) defends during the second half of an NFL football game, Monday, Sept. 8, 2014, in Glendale, Ariz. The Cardinals took over on downs and ran out the clock to win 18-17. (AP Photo/Rick Scuteri)