Carson Palmer's career

Quarterback Carson Palmer (3) of the USC Trojans runs with the ball during the game against the Colorado Buffalos at the Memorial Coliseum in Los Angeles, California on Sept. 9, 2000.

Quarterback Carson Palmer (3) of the USC Trojans passes the ball during the game against the Notre Dame Fighting Irish at the Los Angeles Coliseum in Los Angeles, California, Nov. 25, 2000.

Carson Palmer celebrates — Getty Images/Robert Laberge

Quarterback Carson Palmer of the University of Southern California Trojans celebrates after defeating the University of Notre Dame Fighting Irish at the Los Angeles Coliseum on Nov. 30, 2002 in Los Angeles, California. The Trojans defeated the Fighting Irish 44-13.

Pete Carroll, Troy Polamalu and MVP Carson Palmer — Getty Images/Eliot J. Schechter

Alfonso Cueto, former president of the Orange Bowl committee, head coach Pete Carroll, Troy Polamalu (43), and MVP Carson Palmer (3) of USC look on from the stage after the victory over Iowa in the FedEx Orange Bowl on Jan. 2, 2003 at Pro Player Stadium in Miami, Florida. USC defeated Iowa 38-17.

Carson Palmer wins the Heisman Trophy — Getty Images

Carson Palmer of the University of Southern California speaks with the press after winning the 68th annual Heisman Trophy Award at The Yale Club Dec. 14, 2002 in New York City. The USC quarterback became the first West Coast player win the trophy since 1981. Palmer received 242 first-place votes, winning by 233 over second place Iowa quarterback Brad Banks.

Carson Palmer from USC after being selected first by the Cincinnati Bengals at the 2003 NFL Draft on April 26, 2003 at Madison Square Garden in New York City. Palmer agreed to a $40 million, seven-year deal on April 24 that included a $10 million signing bonus, with another $4 million bonus due in two years.

Cincinnati Bengals rookie QB Carson Palmer, the number 1 pick in in the 2003 NFL draft, sets to pass during action against the New York Jets at the Meadowlands In East Rutherford, N.J., Aug. 10, 2003.

Carson Palmer during a scrimmage — Getty Images/Andy Lyons

Carson Palmer of the Cincinnati Bengals looks on during a scrimmage in training camp on Aug. 2, 2003 at Georgetown College in Georgetown, Kentucky.

Carson Palmer passes the ball — Getty Images/Andy Lyons

Carson Palmer of the Cincinnati Bengals passes the ball to Kenny Watson during the game against the Miami Dolphins on Sept. 19, 2004 at Paul Brown Stadium in Cincinnati, Ohio. The Bengals defeated the Dolphins 16-13.

Carson Palmer scores a touchdown — Getty ImagesAndy Lyons

Quarterback Carson Palmer (9) of the Cincinnati Bengals scores a touchdown against the Dallas Cowboys at Paul Brown Stadium on Nov. 7, 2004 in Cincinnati, Ohio. The Bengals defeated the Cowboys 26-3.

Carson Palmer signs autographs — Getty Images/Andy Lyons

Carson Palmer of the Cincinnati Bengals signs autographs after the first practice of the Bengals Training Camp at Georgetown College on June 5, 2005 in Georgetown, Ky.

Carson Palmer lays on the ground after being hit in the knee — Getty Images/Andy Lyons

Quarterback Carson Palmer (9) of the Cincinnati Bengals lays on the ground after being hit in the knee on the first drive of the AFC Wild Card Playoff Game against the Pittsburgh Steelers at Paul Brown Stadium on Jan. 8, 2006 in Cincinnati, Ohio. The Steelers defeated the Bengals 31-17.

Carson Palmer wins MVP award — Getty Images/Al Messerschmidt

Cincinnati Bengals quarterback Carson Palmer received the MVP award from Cadillac director of retail development Jon Brancheau and NFL vice president Harold Henderson during the NFL Pro Bowl game at Aloha Stadium in Honolulu, Hawaii on Feb. 10, 2007.

Carson Palmer throws a pass — Getty Images/Andy Lyons

Carson Palmer (9) of the Cincinnati Bengals throws a pass against the New York Jets during the NFL game on Oct. 21, 2007 at Paul Brown Stadium in Cincinnati, Ohio.

Carson Palmer is hit by Gerard Warren — Getty Images/Ezra Shaw

Carson Palmer (9) of the Cincinnati Bengals is hit by Gerard Warren (61) of the Oakland Raiders at Oakland-Alameda County Coliseum on Nov. 22, 2009 in Oakland, Calif.

Carson Palmer (9) of the Cincinnati Bengals throws a pass against the Cleveland Browns during their game at Cleveland Browns Stadium on Oct. 4, 2009 in Cleveland, Ohio. The Bengals defeated the Browns 23-20 in overtime.

Carson Palmer throws from the end zone — Getty Images/Stephen Dunn

Quarterback Carson Palmer (3) of the Cincinnati Bengals throws from the end zone against the San Diego Chargers on Dec. 20, 2009 at Qualcomm Stadium in San Diego, Calif.

Gary Guyton is tackled by Carson Palmer — Getty Images/Elsa

Gary Guyton (59) of the New England Patriots carries the ball in for a touchdown as Carson Palmer (9) of the Cincinnati Bengals tries to tackle him during the NFL season opener on Sept. 12, 2010 at Gillette Stadium in Foxboro, Mass.

Carson Palmer speaks with Mark Sanchez — Getty Images/Chris Trotman

Quarterback Carson Palmer (9) of the Cincinnati Bengals speaks with Quarterback Mark Sanchez (6) of the New York Jets following their game at New Meadowlands Stadium on Nov. 25, 2010 in East Rutherford, N.J. Palmer and Sanchez both attended USC.

Carson Palmer answers questions next to Oakland Raiders coach Hue Jackson — AP Photo/Marcio Jose Sanchez

Quarterback Carson Palmer, left, answers questions next to Oakland Raiders coach Hue Jackson after the Raiders traded two high draft picks to the Cincinnati Bengals for Palmer, at the NFL football team's headquarters in Alameda, Calif., Tuesday, Oct. 18, 2011.

Carson Palmer drops back to pass — Getty Images/Brian Bahr

Quarterback Carson Palmer (3) of the Oakland Raiders drops back to pass against the Kansas City Chiefs in the fourth quarter on October 23, 2011 at O.co Coliseum in Oakland, Calif. Palmer threw three interceptions and the Chiefs took advantage of the rusty quarterback to win their third straight game, beating Oakland 28-0 in their most lopsided road win ever against the Raiders.