San Diego Chargers' Kellen Clemens throws a pass as he warms up for the team's NFL preseason football game against the Arizona Cardinals on Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals quarterback Carson Palmer (3) is sacked by San Diego Chargers outside linebacker Melvin Ingram (54) during the first half of an NFL preseason football game, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals cornerback Patrick Peterson warms up for the Cardinals' NFL preseason football game against the San Diego Chargers, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals quarterback Carson Palmer warms up for the team's NFL preseason football game against the San Diego Chargers, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers' Philip Rivers throws a pass as players warm for an NFL preseason football game against the Arizona Cardinals on Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals wide receiver John Brown (12) scores a touchdown as San Diego Chargers cornerback Richard Crawford (35) defends during the first half of an NFL preseason football game, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals wide receiver John Brown (12) celebrates his touchdown against the San Diego Chargers with fans during the first half of an NFL preseason football game, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals wide receiver John Brown (12) makes a catch as San Diego Chargers outside linebacker Melvin Ingram (54) defends during the first half of an NFL preseason football game, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals wide receiver J.J. Nelson (14) pulls in a pass as San Diego Chargers cornerback Richard Crawford (35) defends during the first half of an NFL preseason football game, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals wide receiver John Brown (12) celebrates his touchdown with teammate Larry Fitzgerald (11) during the first half of an NFL preseason football game against the San Diego Chargers, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers quarterback Kellen Clemens looks to pass under pressure from Arizona Cardinals free safety Tyrann Mathieu (32) during the first half of an NFL preseason football game, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals quarterback Carson Palmer throws against the San Diego Chargers during the first half of an NFL preseason football game, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals quarterback Carson Palmer (3) is sacked by San Diego Chargers outside linebacker Melvin Ingram (54) during the first half of an NFL preseason football game, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals quarterback Drew Stanton (5) throws as San Diego Chargers linebacker Nick Dzubnar (48) pursues during the first half of an NFL preseason football game, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Diego Chargers' Nick Dzubnar celebrates his sack against the Arizona Cardinals during the first half of an NFL preseason football game Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals' David Johnson (31) gets tackled by San Diego Chargers' Lowell Rose, left, and Kavell Conner during the first half of an NFL preseason football game Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals wide receiver Jaron Brown (13) can't hold on to a pass as San Diego Chargers' Richard Crawford, left, and Darrell Stuckey defend during the first half of an NFL preseason football game, Saturday, Aug. 22, 2015, in Glendale, Ariz. (AP Photo/Rick Scuteri)