Philadelphia Eagles cornerback Nnamdi Asomugha (24) in action against the Detroit Lions in a game October 14, 2012 at Lincoln Financial Field in Philadelphia. Detroit defeated Philadelphia 26-23 in overtime. (AP Photo/Damian Strohmeyer)

Philadelphia Eagles' Nnamdi Asomugha runs off the field at the end of an NFL preseason football game against the Pittsburgh Steelers, Thursday, Aug. 9, 2012, in Philadelphia. The Eagles won 24-23. (AP Photo/Michael Perez)

Philadelphia Eagles cornerback Nnamdi Asomugha (24) during the NFL game between the Washington Redskins and the Philadelphia Eagles on Sunday, December 23rd 2012 in Philadelphia. The Redskins won 27-20. (AP Photo/Brian Garfinkel)

Philadelphia Eagles cornerback Nnamdi Asomugha runs to the field during introductions at the start of an NFL football game against the Washington Redskins, Sunday, Dec. 23, 2012, in Philadelphia. (AP Photo/Michael Perez)

Philadelphia Eagles Nnamdi Asomugha in a game against the Miami Dolphins at Sun Life Stadium in Miami, FL on December 10, 2011. (AP Photo Tom DiPace)

Philadelphia Eagles defensive back Nnamdi Asomugha #24 during the NFL game between the Philadelphia Eagles and the St Louis Rams. The Eagles won 31-13 at the Edward Jones Dome in St. Louis, Missouri on Sunday, September 11th 2011. (AP Photo/Brian Garfinkel)

Oakland Raiders cornerback Nnamdi Asomugha, top right, intercepts a pass intended for Cincinnati Bengals wide receiver Andre Caldwell, bottom left, on the last play of the game in the fourth quarter of an NFL football game in Oakland, Calif., Sunday, Nov. 22, 2009. Oakland won 20-17. (AP Photo/Marcio Jose Sanchez)

Oakland Raiders cornerback Nnamdi Asomugha (21) of an NFL football game in Oakland, Calif., Sunday, Sept. 19, 2010. (AP Photo/Paul Sakuma)

Oakland Raiders cornerback Nnamdi Asomugha (21) drops back in pass coverage on Philadelphia Eagles wide receiver Jeremy Maclin (18) during an NFL game against the Philadelphia Eagles on October 18, 2009. The Raiders defeated the Eagles 13-9. (AP Photo/Kevin Terrell)

Oakland Raiders cornerback Nnamdi Asomugha (21) takes the field before an NFL game against the Philadelphia Eagles on October 18, 2009. The Raiders defeated the Eagles 13-9. (AP Photo/Kevin Terrell)

Oakland Raiders defensive back Nnamdi Asomugha (21) celebrates in interception during an NFL game against the Carolina Panthers, Nov. 9, 2008 in Oakland. (AP Photos/Greg Trott)

Dallas Cowboys wide receiver Laurent Robinson can't make the catch as he is defended by Philadelphia Eagles cornerback Nnamdi Asomugha in the second half of an NFL football game Sunday, Oct. 30, 2011 in Philadelphia. (AP Photo/Matt Slocum)

Oakland Raiders defensive back Nnamdi Asomugha (21) takes the field during an NFL preseason game against the San Francisco 49ers, Sunday, Aug. 28, 2010 in Oakland. The 49ers won the game, 28-24. (AP Photo/Greg Trott)

Cornerback Nnamdi Asomugha #21 of the Oakland Raiders signals toward the bench during the game against the Denver Broncos on December 2, 2007 at McAfee Coliseum in Oakland, California. The Raiders defeated the Broncos 34-20. (AP Photo/Paul Spinelli)

Oakland Raiders defensive back Nnamdi Asomugha (21) takes a breather during an NFL game against the New York Jets, Sunday, Oct. 19, 2008 in Oakland. (AP Photo/Greg Trott)

Oakland Raiders defensive back Nnamdi Asomugha (21) defends during an NFL game against the Seattle Seahawks, Sunday, Oct. 31, 2010 in Oakland. The Raiders won the game 33 to 3. (AP Photo/Greg Trott)

Oakland Raiders cornerback Nnamdi Asomugha, right, scores a touchdown on an interception in front of Pittsburgh Steelers running back Verron Haynes, during the first quarter of their NFL football game, Sunday, Oct. 29, 2006, in Oakland, Calif. (AP Photo/Paul Sakuma)

Oakland Raiders cornerback Nnamdi Asomugha (21) scores after catching a Pittsburgh Steelers interception in the first quarter of their NFL football game, Sunday, Oct. 29, 2006, in Oakland, Calif. The Raiders won 20-13. (AP Photo/Paul Sakuma)

Oakland Raiders' Nnamdi Asomugha (21) breaks up pass intended for Dallas Cowboys' Keyshawn Johnson (19) in the first half, Sunday, Oct. 2, 2005, in Oakland, Calif. (AP Photo/Marcio Jose Sanchez)

Houston Texans' Andre Johnson (80) catches a pass, good for a first down, before being pushed out of bounds by Oakland Raiders' Nnamdi Asomugha (21) during the first quarter of their preseason game Saturday, Aug. 20, 2005 in Houston. (AP Photo/David J. Phillip)

The Oakland Raiders' first-round draft pick, Nnamdi Asomugha, right, a defensive back from California, smiles with Oakland coach Bill Callahan, left, Saturday, April 26, 2003, at the team's headquarters in Alameda, Calif. The Raiders selected Asomugha with the 31st pick overall. (AP Photo/Paul Sakuma)