Photo Gallery: Cliff Avril

Detroit Lions defensive end Cliff Avril (92) is introduced before an NFL football game against the Indianapolis Colts at Ford Field in Detroit, Sunday, Dec. 2, 2012. (AP Photo/Rick Osentoski)

Philadelphia Eagles wide receiver DeSean Jackson (10) is tackled by Detroit Lions defensive end Cliff Avril (92) during the first half an NFL football game, Sunday, Oct. 14, 2012, in Philadelphia, Philadelphia. (AP Photo/Mel Evans)

Detroit Lions defensive end Cliff Avril celebrates sacking Minnesota Vikings quarterback Christian Ponder in the 1st half of an NFL football game against the Detroit Lions in Detroit Sunday, Sept. 30, 2012. (AP Photo/Paul Sancya)

Detroit Lions defensive end Cliff Avril (92) reacts during an NFL football game against the Seattle Seahawks, Sunday, Oct. 28, 2012. in Detroit. (AP Photo/Rick Osentoski)

Minnesota Vikings running back Adrian Peterson (28) rushes against Detroit Lions defensive end Cliff Avril (92) in the second half of an NFL football game Sunday, Sept. 30, 2012, in Detroit. (AP Photo/Duane Burleson)

Oakland Raiders quarterback Carson Palmer (3) throws under pressure from Detroit Lions' Cliff Avril (92) during the first half of a preseason NFL football game in Oakland, Calif., Saturday, Aug. 25, 2012. (AP Photo/Ben Margot)

Detroit Lions defensive end Cliff Avril and his son Xavier after an NFL football game against the Chicago Bears in Detroit, Sunday, Dec. 30, 2012. (AP Photo/Rick Osentoski)