Casillas (neck) is unlikely to play in Saturday's preseason game, the New York Daily News' Ralph Vacchiano reports.

It's not clear how serious the neck injury is, but Casillas' status should be updated next week in advance of the final preseason game.

Casillas agreed to a three-year, $10.5 million contract with the Giants on Tuesday, ESPN's Dan Graziano reports.

Casillas will head to New York after playing last season for both the Buccaneers and Patriots. Casillas made just 37 tackles (24 solo) in 13 total games, but the size of his contract hints at him having a chance at a more expanded role with the Giants.

The Buccaneers traded Casillas and a 2015 sixth-round pick to the Patriots in exchange for a 2015 fifth-round pick on Tuesday, the Tampa Bay Times reports.

Casillas lost playing time to Danny Lansanah of late, so the Buccaneers decided to send him to New England and move up a few spots in the draft. Casillas will likely slot in as a special teams player for the Patriots off the bat.

Casillas (hamstring) is listed as inactive Sunday against the Vikings, Scott Smith of the Buccaneers' official site reports.

Casillas is logging a second DNP in a row, but with nary a contribution to the game long since Week 3, he isn't a suitable IDP option at the moment.

Casillas (hamstring) is questionable for Sunday's game against Minnesota, FOX Sports 1's Jenna Laine reports.

Casillas was a limited practice participant all week, so he should have a decent chance of suiting up. Even if he does, though, he's unlikely to be more than a rotational linebacker.

Casillas (hamstring) is out for Sunday's game against Baltimore, Scott Smith of Buccaneers.com reports.

His injury is improving, but he'll have to miss at least this game. Casillas has just nine tackles in five games this season.

Casillas is due to have an MRI performed on his hamstring Tuesday, the Tampa Bay Times reports.

Casillas' hamstring condition is reportedly improving following Sunday's game; however, his MRI on Tuesday should clarify his prognosis. Through five games, Casillas sports just nine tackles (five solo).

Casillas was not with the Buccaneers during their preseason game against the Bills on Saturday due to disciplinary reasons, the Tampa Bay Times reports.

The exact reason why Casillas was a non-participant Saturday is still unclear, however, it doesn't seem like it will affect his status for the start of the regular season. Last year, he provided Tampa Bay with 34 tackles before suffering a season-ending knee injury with four weeks left on the schedule.

Bucs re-signed LB Jonathan Casillas to a one-year contract.

Casillas, 26, appeared in 12 games as a part-time starter at SAM linebacker prior to going on injured reserve with a knee injury. He's expected to be ready for the start of the Bucs' offseason program and could compete for a starting role in 2014.

The Tampa Bay Times reports the Bucs would like to re-sign free agent LB Jonathan Casillas, but have only had "preliminary" talks.

A knee injury limited Casillas to 12 games and 199 defensive snaps last season. He shouldn't be expensive if the Bucs want to lock him up before the start of free agency on March 11.

Bucs placed LB Jonathan Casillas (knee) on injured reserve, ending his season.

Casillas went down in Sunday's loss to Carolina. His first season in Tampa ends with 34 tackles and one forced fumble in 12 games while playing on just 199 defensive snaps. He'll hit the open market this spring.

Bucs LB Jonathan Casillas is expected to miss the rest of the season with a knee injury.

He went down in Sunday's Week 13 loss to Carolina. A part-time player on Tampa's defense, Casillas has 34 tackles and a forced fumble through 12 games, starting four. Look for Dekoda Watson to handle more playing time.

Jonathan Casillas and Dekoda Watson are competing for the Bucs' starting strong-side linebacker job.

There's no mention of Adam Hayward. Watson is an interesting candidate because he was such a good blitzer at Florida State, and the Bucs will be able to blitz a lot more with Darrelle Revis in the secondary. Casillas still might be a superior option based on experience and cover skills at SAM 'backer.

Bucs signed LB Jonathan Casillas to a one-year, $3 million contract.

The deal is worth "up to" $3 million, so it's probably incentive laden. Bucs GM Mark Dominik loves stealing from division rivals, and 26-year-old Casillas has flashed every-down tools in spurts the past four seasons. In 2012, he was the Saints' nickel 'backer and recorded 31 tackles in 14 games with one start.

Free agent LB Jonathan Casillas hasn't had "any contact" with the Saints.

Casillas played 256 snaps at outside linebacker last season, but may no longer be a fit in New Orleans with the Saints shifting to a 4-3 defense. Casillas is injury prone, but appeared in 14 games in 2012. Going on 26, he could draw some interest in the second wave of free agency.

Saints LB Jonathan Casillas has gotten first-team reps only with the nickel package so far in training camp.

Casillas made five starts last season, but is out of the mix for first-string duties this year after all of the Saints' offseason linebacker moves. Injury prone, Casillas is behind Scott Shanle and Will Herring on the strong side.

Saints re-signed restricted free agent LB Jonathan Casillas to a one-year, $1.26 million contract.

Casillas did draw interest from the Titans, but couldn't land a starter's contract. With David Hawthorne and Curtis Lofton now in New Orleans, Casillas will go from starter to relatively high-priced special teamer.

Restricted free agent WLB Jonathan Casillas will visit the Titans on Monday.

Casillas was tendered at the original-round level, giving the Saints the right of first refusal if he signs elsewhere, but no draft-pick compensation since he was an undrafted free agent. This will be Casillas' first visit of free agency. New Orleans could be inclined to let Casillas walk after signing David Hawthorne and Curtis Lofton.

Saints placed orignal-round tender on restricted free agent tender WLB Jonathan Casillas.

The move gives the Saints the right of first refusal on Casillas, who originally signed as an undrafted free agent. He'll be in line for roughly $1.26 million if he signs his tender. The Saints are saving $667,000 by tendering Casillas at the original-round level instead of the second-round level, but will receive no draft-pick compensation if he signs elsewhere and they choose not to match.

The Saints will reportedly apply the original round/right of first refusal restricted free agent tender to WLB Jonathan Casillas.