Carson Palmer is calling it a career.
Arizona Cardinals quarterback Carson Palmer, the 2002 Heisman Trophy Winner and 2003 No. 1 overall pick, has retired.
Palmer announced the move in a personal letter published on the Cardinals' team website.
"Over the years, I’ve had teammates who decided to hang it up and I would ask them how they knew when it was time to walk away," Palmer's letter said in part. "The answer was almost always the same: You just know.
"For me that time is now. Why? Quite simply, I just know."
Palmer spent the first eight seasons of his career with the Cincinnati Bengals. He battled back from a torn ACL suffered against the Pittsburgh Steelers in a January 2006 AFC Wild Card game to start every game for Cincinnati the following season. He helped the Bengals reach the playoffs twice.
After two seasons in Oakland (2011-12), Palmer experienced a late career resurgence with the Cardinals. His best season came in 2015, when he threw for 4,671 yards and 35 touchdowns, leading Arizona to the NFC Championship Game and earning a Pro Bowl berth in the process.
For his career, Palmer threw for 46,247 yards, 294 touchdowns and 187 interceptions. The Cardinals are now looking for a new quarterback and a head coach, as Bruce Arians stepped down from coaching yesterday.