Arizona Cardinals quarterback Carson Palmer (3) waves to the fans as he jogs off the field after an NFL football game against the Tampa Bay Buccaneers Sunday, Oct. 15, 2017, in Glendale, Ariz. The Cardinals defeated the Buccaneers 38-33.

Atlanta Falcons outside linebacker Vic Beasley (44) hits Arizona Cardinals quarterback Carson Palmer (3) behind the line of scrimmage during an NFL football game in Atlanta on Nov. 27, 2016.

Arizona Cardinals quarterback Carson Palmer (3) in the tunnel prior to the NFL game against the Philadelphia Eagles on Sunday, Oct. 26, 2014 in Glendale The Cardinals won the game, 24-20.

Arizona Cardinals wide receiver Larry Fitzgerald (11) is congratulated by quarterback Carson Palmer after catching a pass during the fourth quarter of an NFL football game against the St. Louis Rams on Sunday, Dec. 6, 2015, in St. Louis. With the reception, Fitzgerald has surpassed Andre Johnson as the youngest player to reach 1,000 career receptions in NFL history.

Arizona Cardinals quarterback Carson Palmer (3) runs off the field after an NFL game against the Cincinnati Bengals on Sunday, Nov. 22, 2015, in Glendale, Ariz. The Cardinals won the game, 31-28.

Arizona Cardinals quarterback Carson Palmer (3) during an NFL football game against the San Francisco 49ers, Sunday, Nov. 13, 2016, in Glendale, Ariz.

Arizona Cardinals quarterback Carson Palmer (3) is hit as he throws by San Francisco 49ers defensive end Aaron Lynch (59) to force an interception during the first half of an NFL football game, Sunday, Oct. 1, 2017, in Glendale, Ariz.

Arizona Cardinals quarterback Carson Palmer (3) celebrates a touchdown during an NFL game against the Philadelphia Eagles defense on Sunday, Oct. 26, 2014, in Glendale, Az. The Cardinals won the game, 24-20.

Arizona Cardinals quarterback Carson Palmer in action against the Seattle Seahawks in the second half of an NFL football game, Saturday, Dec. 24, 2016, in Seattle. The Cardinals won 34-31.

Arizona Cardinals quarterback Carson Palmer watches the action from the sideline during the second half of an NFL preseason football game against the Oakland Raiders, Friday, Aug. 12, 2016, in Glendale, Ariz.

Denver Broncos linebacker Von Miller (58) pressures Oakland Raiders quarterback Carson Palmer (3) in second half action against the in the NFL game at O.co Stadium in Oakland,CA December 6, 2012.

Arizona Cardinals quarterback Carson Palmer (3) unleashes a pass during a game against the Tampa Bay Buccaneers, Sunday Oct. 15, 2017 in Glendale, Ariz.

Oakland Raiders quarterback Carson Palmer (3) looks for a receiver as he is pressured by Baltimore Ravens nose tackle Ma'ake Kemoeatu during an NFL football game in Baltimore, Sunday, Nov. 11, 2012.

Quarterback Carson Palmer #9 of the Cincinnati Bengals passes the football against the Carolina Panthers at Paul Brown Stadium on October 22, 2006 in Cincinnati, Ohio. The Bengals defeated the Panthers 17-14.

Cincinnati Bengals quarterback Carson Palmer (9) leaves the field after their 17-14 win over the Carolina Panthers in their NFL football game in Cincinnati, Ohio Sunday, Oct. 22, 2006. Palmer threw for 240 yards and two touchdowns.

Cincinnati Bengals wide receiver Jerome Simpson celebrates his touchdown with quarterback Carson Palmer, right, during the second half of an NFL football game against the Baltimore Ravens in Baltimore, Sunday, Jan. 2, 2011.

Cincinnati Bengals quarterback Carson Palmer (9) throws a pass as he is about to be hit by Baltimore Ravens linebacker Adalius Thomas, Sunday, Sept. 26, 2004, in Cincinnati.

Carson Palmer, a quarterback from Southern Cal, holds up a Cincinnati Bengals jersey after they selected him as the No. 1 pick overall in the National Football League draft Saturday, April 26, 2003 in New York.

Southern California quarterback Carson Palmer holds up a jeweled shillelagh to celebrate Southern California's 44-13 win against Notre Dame in Los Angeles on Nov. 30, 2002.