San Diego Chargers inside linebacker D.J. Smith (51) knocks the ball lose from Arizona Cardinals tight end D.C. Jefferson (86) during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers linebacker Andrew Gachkar (59) celebrates his interception with teammates D.J. Smith (51), William Middleton (42) and Jahleel Addae, on back, during the second half of a preseason NFL football game against the Arizona Cardinals Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals head coach Bruce Arians watches his team during the first half of a preseason NFL football game against the San Diego Chargers, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals tackle Levi Brown (75) walks off the field during the second half of a preseason NFL football game against the San Diego Chargers Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers running back Fozzy Whittaker (34) scores a touchdown as Arizona Cardinals linebacker Alex Okafor (57) and Curtis Taylor (26) defends during the first half of a preseason NFL football game Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers quarterback Charlie Whitehurst (6) throws under pressure from Arizona Cardinals defensive end Ronald Talley (96) during the second half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals wide receiver Michael Floyd (15) pulls in a touchdown pass as San Diego Chargers cornerback Gregory Gatson (31) defends during the second half of a preseason NFL football game Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Diego Chargers linebacker Andrew Gachkar (59) can't hold onto a pass intended for Arizona Cardinals Larry Fitzgerald (11) during the second half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals first round draft pick Jonathan Cooper (61) is carted off the field after being injured during the second half of a preseason NFL football game against the San Diego Chargers, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals first round draft pick Jonathan Cooper (61) is helped off the field after being injured against the San Diego Chargers during the second half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers head coach Mike McCoy applauds his team after scoring a touchdown against the Arizona Cardinals in the first half of a preseason NFL football game on Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Diego Chargers defensive back William Middleton, right, loses his helmet as he tackles Arizona Cardinals running back Alfonso Smith, left, during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers quarterback Philip Rivers (17) scrambles as Arizona Cardinals' John Abraham (53) and Jasper Brinkley (54) defend during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals wide receiver Larry Fitzgerald (11) is tackled against the San Diego Chargers during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals' Larry Fitzgerald, right, gets upended by San Diego Chargers' Johnny Patrick (26) in the first half of a preseason NFL football game on Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Diego Chargers' Philip Rivers (17) gets his arm hit by Arizona Cardinals' Matt Shaughnessy as Rivers tries to throw the ball in the first half of a preseason NFL football game on Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Diego Chargers' Philip Rivers throws the ball against the Arizona Cardinals in the first half of a preseason NFL football game on Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals strong safety Rashad Johnson (49) tries to lateral after recovering a fumble but causes a fumble himself as San Diego Chargers tight end Antonio Gates (85) and John Phillips (83) defends during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers tight end John Phillips (83) runs a fumble in for touchdown as teammate Le'Ron McClain (33) and Nick Hardwick (61) celebrate as Arizona Cardinals nose tackle Dan Williams (92) and Matt Shaughnessy look on during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals kicker Dan Carpenter (2) has his field goal blocked against the San Diego Chargers during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Matt York)

San Diego Chargers running back Ryan Mathews (24) escapes the reach of Arizona Cardinals middle linebacker Jasper Brinkley (54) during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Matt York)

San Diego Chargers wide receiver Vincent Brown, front, is tackled by Arizona Cardinals cornerback Jerraud Powers during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers running back Danny Woodhead (39) gains yards against the Arizona Cardinals during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers running back Ryan Mathews (24) dives into the end zone for a touchdown against the Arizona Cardinals during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers running back Ryan Mathews (24) dives into the end zone for a touchdown against the Arizona Cardinals during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers running back Ryan Mathews (24) dives into the end zone for a touchdown against the Arizona Cardinals during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

San Diego Chargers running back Ryan Mathews, right, is tackled by Arizona Cardinals defensive end John Abraham, left, during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers defensive back Darrell Stuckey (25) blocks the punt of Arizona Cardinals punter Dave Zastudil during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Arizona Cardinals quarterback Carson Palmer (3) throws against the San Diego Chargers during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals running back Rashard Mendenhall (28) runs against the San Diego Chargers during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

San Diego Chargers quarterback Philip Rivers (17) throws against the Arizona Cardinals during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Rick Scuteri)

Arizona Cardinals quarterback Carson Palmer (3) throws against the San Diego Chargers during the first half of a preseason NFL football game, Saturday, Aug. 24, 2013, in Glendale, Ariz. (AP Photo/Matt York)