San Diego Chargers quarterback Philip Rivers (17) passes in the first quarter of an NFL football game against the Pittsburgh Steelers on Sunday, Dec. 9, 2012, in Pittsburgh. (AP Photo/Don Wright)

Associated Press
San Diego Chargers quarterback Philip Rivers (17) passes in the first quarter of an NFL football game against the Pittsburgh Steelers on Sunday, Dec. 9, 2012, in Pittsburgh. (AP Photo/Don Wright)
San Diego Chargers quarterback Philip Rivers (17) passes in the first quarter of an NFL football game against the Pittsburgh Steelers on Sunday, Dec. 9, 2012, in Pittsburgh. (AP Photo/Don Wright)