Jaguars released G Will Rackley.

Rackley, a 2011 third-round pick, was a disaster in his 11 starts at left guard last season. The Jaguars need his roster spot as they bring in third-round G/T Brandon Linder and a host of UDFAs.

Jaguars GM Dave Caldwell said the team only sees LG Will Rackley as a "swing guy."

Rackley, the 76th pick in the 2011 draft, has started 25-of-26 games he's appeared in at left guard but was thoroughly destroyed both as a run and pass blocker this past season. Caldwell says the team has given him some looks at center in practice, so he could be potential interior line depth. The Florida Times-Union considers left guard and center major areas of need for the Jaguars.

Jaguars placed LG Will Rackley (concussion) on injured reserve, ending his season.

Rackley suffered his second concussion of the season last week. He was reportedly dealing with a "severe" headache on Saturday morning. The effects of Rackley's first concussion lingered for weeks. It's a scary situation for the third-year pro, who has graded out near the bottom of Pro Football Focus' guard ratings. Rackley's backup is Mike Brewster, but he's also been sent to injured reserve. Jacques McClendon should get the start in Week 16.

Jaguars LG Will Rackley (concussion) is in danger of missing Week 10.

Rackley recently experienced a "reappearance of symptoms" related to his Week 8 concussion. His backup is former Ohio State center Mike Brewster.

Jaguars LG Will Rackley has been diagnosed with a concussion.

Rackley has the bye week to pass through the concussion program. If he can't get cleared in two weeks, Mike Brewster will draw the start.

LG Will Rackley left in the first half of Sunday's Week 8 loss to the Niners with a head injury.

Rackley didn't return to the game, so it looks like a concussion. G/C Mike Brewster came on.

Jaguars LG Will Rackley (knee) played every snap in Sunday's Week 2 loss at Oakland.

Rackley bounced back well from the lateral knee sprain he sustained in Week 1. The Jags still managed just 34 rushing yards on 19 attempts and Chad Henne got sacked five times.

Jagaurs LG Will Rackley has been diagnosed with a minor lateral knee sprain.

Rackley went down in the fourth quarter of the Week 1 blowout and did not return. But according to coach Gus Bradley, Rackley could be back in practice as soon as Wednesday. It's good news for the Jags as Mike Brewster would be a significant downgrade.

Jaguars LG Will Rackley left Sunday's Week 1 loss to the Chiefs with a knee injury and did not return.

Rackley, who was coming off a sprained ankle sustained in the third preseason game, went down in the fourth quarter. He was replaced by Mike Brewster.

Jaguars LG Will Rackley has been diagnosed with a sprained ankle.

It's a sigh of relief for the Jags. On the first play of Saturday's preseason game against the Eagles, Rackley got rolled up on and went down in a heap. It looked like a serious injury for a player that missed all of 2012 with a high-ankle sprain. Rackley is week to week, yet hopeful he'll be able to play Week 1. His backup is Mike Brewster.

Jaguars starting LG Will Rackley left Saturday's preseason game with a left leg injury and will not return.

Rackley went down on the very first play from scrimmage of the game. He couldn't put any weight on his left leg as he was helped off. Rackley missed the entire 2012 season due to a high-ankle sprain.

Will Rackley practiced at the Jaguars' starting left guard during pre-draft minicamp.

The 76th pick in the 2011 draft, Rackley struggled mightily as a rookie before missing all of 2012 with a high ankle sprain that required surgery. "He's done a really good job," new coach Gus Bradley said of Rackley after the minicamp. Rackley is penciled in -- very lightly -- as the starter next to Eugene Monroe.

A source tells the Times Union that the Jaguars are "comfortable" giving Will Rackley a shot at winning the starting left guard job.

Rackley missed the entire 2012 season due to a high-ankle sprain. And as a rookie in 2011, he graded out as one of the game's worst starting guards while starting 14 games. The Jags would do well to bring in some serious competition.

Jaguars placed LG Will Rackley (ankle) on injured reserve, ending his season.

Rackley recently suffered a setback in his return from a high-ankle sprain. The Jaguars may be better off without him, as Eben Britton has moved inside with pleasant surprise Cameron Bradfield holding down right tackle.

Jaguars LG Will Rackley suffered a setback in his recovery from a high ankle sprain and is out indefinitely.

Rackley was one of the worst starting offensive linemen in football as a rookie, so there may be no falloff in Jacksonville's run blocking and pass pro at left guard. The Jaguars are thinning fast on the O-Line, though. G/C Jason Spitz is lost for the season, and the Jags didn't draft a single lineman in April.

Jaguars LG Will Rackley (high-ankle sprain) returned to practice on Saturday.

Rackley ended up missing a little over three weeks. It's doubtful he's back to 100 percent, but with 15 days to go until Week 1, Rackley should be ready for Opening Day.

Jaguars coach Mike Mularkey says LG Will Rackley will miss the next 3-4 weeks with a high ankle sprain.

It's an optimistic timetable for a high ankle sprain, keep in mind. Rackley struggled in 14 rookie-year starts, but the Jags were hoping for a significant year-two leap. Instead, they may have to turn to journeyman-caliber Jason Spitz at left guard. Rackley will be in a race to regain his job before Week 1.

Jaguars LG Will Rackley was spotted on crutches and unable to put any weight on his right ankle after going down in Tuesday's camp practice.

A teammate apparently rolled onto Rackley's ankle, and he did not return to the practice field. A second-year player, Rackley started 14 games as a rookie. If the injury is serious, the Jags might have to turn to C Jason Spitz.

Will Rackley worked as the Jaguars' starting left guard throughout offseason practices.

Rackley started 14 games as a rookie, comfortably grading out as Pro Football Focus' lowest-rated guard last season. The 2011 third-rounder struggled particularly with technique after missing last offseason while transitioning from small-school left tackle at Lehigh to the interior in Jacksonville.

Third-rounder Will Rackley has beaten out veteran Jason Spitz for the Jaguars' starting left guard job.

A favorite of NFL Network's Mike Mayock, Rackley was a four-year starter at left tackle for small-school Lehigh. His power won out over Spitz's finesse, which is a rare piece of good news for Maurice Jones-Drew this season. A possible free agent bust, Spitz is expected to play a reserve role at center and guard.