Quarterback Matt Leinart signed a one-year deal with the Oakland Raiders on Tuesday after working out with the team, a source with knowledge of the situation confirmed.
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Leinart will back up starter Carson Palmer in Oakland and will be reunited with offensive coordinator Greg Knapp, who was his position coach the past two seasons in Houston.
Leinart becomes the Raiders' only backup quarterback to have thrown an NFL pass. Terrelle Pryor, who was taken last summer in the NFL supplemental draft, played one game last season and committed a penalty his only time on the field. Rhett Bomar spent two years on the New York Giants' practice squad.
Leinart spent his first four years in the NFL with the Arizona Cardinals, who drafted him 10th overall in 2006, but he struggled. He started 11 games as a rookie but just seven games in the past five seasons.
Leinart broke his collarbone after five starts in 2007, then was beaten out for the starting job the next season by Kurt Warner.
Leinart spent two years behind Palmer at USC, including when Palmer won the Heisman Trophy in 2002. Leinart took over the Trojans the next season and won two national championships and the Heisman in 2004.
The Associated Press contributed to this report.