Blaine Gabbert's second NFL season came to an early end when the Jacksonville Jaguars placed the quarterback on injured reserve with right forearm and left shoulder injuries.
Gabbert has battled the left shoulder injury much of the season, being knocked out of two games. He then left last week's loss to the Houston Texans with the right forearm injury, and was replaced by veteran Chad Henne, who threw for 365 yards and four touchdowns in the overtime loss, will be the starter going forward.
The Jaguars also placed wide receiver Laurence Robinson on injured reserve with a concussion.
Quarterback Jordan Palmer, the young brother of Oakland Raiders quarterback Carson Palmer, was signed to Jacksonville's active roster along with wide receiver Carlton Mitchell.
Fullback Will Ta'uf'ou was signed to the Jaguars' practice squad, while rookie defensive end Ryan Davis was waived from the practice squad.
Gabbert finishes the 2012 season with 1,662 passing yards with nine touchdowns, six interceptions and a 77.4 passer rating. He has thrown 21 touchdowns and 17 interceptions in 25 career games since being a first-round pick in 2011.
Robinson parlayed a career year with the Dallas Cowboys in 2011 into a multi-year deal with the Jaguars last offseason. He caught just two passes during the preseason, however, and missed three games earlier this season with a concussion. He finishes his first season in Jacksonville with 24 receptions for 252 yards and no touchdowns while starting four of seven games.
Mitchell was a sixth-round pick in 2010 by the Cleveland Browns out of South Florida. He appeared in 16 games, catching three total passes, and was waived before the start of the 2012 regular season.