Posluszny, a 2007 second-round draft pick out of Penn State, completed his four-year contract in 2010 with the Buffalo Bills. He will turn 27 in October.
Posluszny labored with the decision, a source said, because he wanted to stay with the Bills. He decided on the Jaguars because of the chance to play middle linebacker in a 4-3 defense. The Bills have switched to a 3-4.
After missing much of his rookie season with a broken arm, he was a three-year starter at linebacker for Buffalo.
He led the Bills with 151 tackles last season.
Ravens agree to $32M deal with Yanda
The deal is for five years and $32 million.
Drafted in the third round of the 2007 draft, the 6-foot-3, 315-pound Yanda is equally effective at guard and tackle.
Retaining Yanda was a priority for general manager Ozzie Newsome, who cleared salary-cap space for the sturdy lineman dumping the contracts of four notable veterans.
Rams, Mikell agree to 4-year deal
The contract is worth $28 million, a source told ESPN NFL Insider Adam Schefter.
Mikell spent the first eight seasons of his career with the Eagles. Mikell tallied 88 tackles, three interceptions and one sack last season.
The Philadelphia Inquirer reported earlier Tuesday the Eagles were planning to let all their unsigned free agents leave Philadelphia, "including starters such as Stewart Bradley, Mikell and Sav Rocca and backup running back Jerome Harrison."
Texans, receiver Jones reach deal
Jones had 51 catches for 562 yards and three touchdowns last year.
Packers strike 5-year deal with kicker Crosby
In four seasons with the Packers, Crosby has made 78.1 percent of his kicks and missed only one career extra point. He made 78.6 percent of his kicks last year and hit a career-high, 56-yard field goal in the season opener against Philadelphia.
With training camp set to open Friday, the Packers' roster is slowly taking shape. On Tuesday, the team told veteran linebacker Nick Barnett that he would not be returning.
Source: Chiefs agree to deal with veteran Wiegmann
Wiegmann had been considering retirement. Earlier this offseason, his agent said the 38-year old center was "50-50" to return in 2011. However, agent Joe Linta told ESPN.com's Bill Williamson on July 18 that Wiegmann wanted to play this year.
Wiegmann extended his consecutive snap streak, which began in 2001, to beyond 10,000 in 2010.
Wiegmann, who came back to Kansas City in 2010 for his second tour of duty with the team, started all 16 games last season and he was a big part of the offensive line that paved the way for the No.1-ranked run offense in the NFL.
Kansas City drafted center Rodney Hudson of Florida State in the second round in April, but Wiegmann could still get a chance to start.
Rayner plans to re-sign with Lions
The former Michigan State Spartan made 13 of 16 field goals for Detroit last season after longtime kicker Jason Hanson went down with an injured right knee.
Michigan State spokesman John Lewandowski, who spoke to Rayner on Tuesday night, says Rayner plans to re-sign with Detroit once teams are allowed to sign veteran free agents.
Rayner is an unrestricted free agent. Teams can talk to veteran free agents, but can't sign them until Friday.
Source: Raiders agree to deal with DE Moss
After being released by the Denver Broncos last November, Moss was picked up by the Raiders six days later and tallied three tackles and one sack in his five games with Oakland. He can be officially signed on Friday after 6 p.m.
Moss spent four years in Denver after being taken with the 17th overall pick in the 2007 draft after starring at the University of Florida. He was the victim of scheme changes by the Broncos, who switched from a 4-3 to a 3-4 defense in 2008.
Moss will provide depth at the defensive end position in Oakland's 4-3 scheme and should contribute on special teams as well.
Source: Vikings, Aromashodu agree to deal
The 27-year-old Aromashodu caught 10 passes for 149 yards in 10 games with the Bears last season.
Jets agree to four-year deal with Hunter
His agent, Ken Zuckerman, confirmed the deal, but declined to release the terms.
This means the Jets are unlikely to re-sign Damien Woody, whom they released in February. It also means they believe second-year lineman Vladimir Ducasse, projected as the starting right tackle before the lockout, isn't ready to step in.
Eagles sign rookie RB Devine
A former standout at West Virginia, the 5-foot-8, 170-pound Devine ran for 4,315 yards and 29 touchdowns on 728 carries as a Mountaineer, and also caught 98 passes for 710 yards and two touchdowns.
Devine also averaged 21.6 yards on 34 kickoff returns at West Virginia, and finished with 5,761 all-purpose yards, the most of any Mountaineer in program history.
He is a native of Fort Myers, Fla.
The Eagles will report to Lehigh University for training camp on Wednesday.
Source: Dolphins agree to deal with Devlin
Devlin will go to Miami and compete against incumbent quarterback Chad Henne for playing time.
The 6-foot-3, 225-pound Devlin threw for 3,032 yards and 22 touchdowns last season. He went to Delaware after transferring from Penn State.
The Arizona Cardinals were among the many teams to contact Devlin Monday night, but Devlin picked the chance to compete for playing time in Miami as his best option.
Bears to sign Sanzenbacher
The Chicago Bears continued to build their class of undrafted rookie free agents Tuesday, agreeing to a deal with Ohio State receiver Dane Sanzenbacher and Northwestern defensive tackle Corbin Bryant.
Sanzenbacher was a first-team All-Big Ten selection in 2010 after leading the conference in receiving yards (948) and touchdown catches (11).
Bryant is a former standout at Morgan Park Academy. He had 25 tackles and 8½ tackles for a loss this season.
Sources said the club is expected to sign Oregon State center Alex Linnenkohl, Virginia Tech tight end Andre Smith, Pittsburgh safety Dom DeCicco, Troy outside linebacker Mario Addison, Mississippi State center J.C. Brignone, TCU receiver Jimmy Young, Texas A&M-Kingsville linebacker Tressor Baptiste, NW Missouri State cornerback Ryan Jones and Purdue tight end Kyle Adams.
Information from ESPN.com senior NFL writer John Clayton, ESPN NFL Insider Adam Schefter, ESPN.com's James Walker and Bill Williamson, ESPNChicago.com's Michael C. Wright, ESPNNewYork.com's Mike Mazzeo and The Associated Press contributed to this report.