A three-time captain with the Patriots, Mankins has earned six Pro Bowl berths and five All-Pro selections in his career. He also was selected to the New England Patriots All-2000s and 50th Anniversary teams.
In 2012, he won the Ed Block Courage Award, given annually to players who are voted by their teammates as role models of inspiration, sportsmanship and courage.
"Logan Mankins is everything we would ever want in a football player," Patriots head coach Bill Belichick said in a statement. "It is hard to imagine a better player at his position, a tougher competitor or a person to represent our program.
"He is one of the all-time great Patriots and the best guard I ever coached. Logan brought a quiet but unmistakable presence and leadership that will be impossible to duplicate."
The 6-foot-4, 300-pound Mankins was a first-round pick out of Fresno State in 2005. He has started all 130 games he has played in during his nine-year career. He has made 17 postseason appearances, including two Super Bowl appearances.
Wright played in all 16 games for the Buccaneers last season, starting eight. He compiled 54 receptions for 571 yards and five touchdowns.
Wright joined Tampa Bay as an undrafted free agent after the 2013 NFL Draft. He gives the Patriots insurance as Rob Gronkowski and Michael Hoomanawanui recover from injuries.
With the acquisition of Mankins, the Buccaneers moved quickly ahead to trim the roster to 75.
Tampa Bay placed cornerback Danny Gorrer on injured reserve, waived (injured) tackle Matt Patchan, cornerback Deveron Carr and tackle J.B. Shugarts. They also were awarded defensive back Marc Anthony and offensive lineman Jeremiah Warren off of waivers.
New England also got down to the 75-man limit by releasing six players and placing two others on injured reserve.
Rookie RB Tyler Gaffney and rookie LB Cameron Gordon were put on injured reserve. The Patriots also cut DL Ben Bass, DB Travis Hawkins, WR Derrick Johnson, LB Deontae Skinner, DB Jemea Thomas and WR Wilson Van Hooser.
---Washington Redskins safety Brandon Meriweather will appeal his two-game suspension that the NFL levied for his latest helmet-to-helmet blow, a hit his coach called a "legitimate football play."
Redskins head coach Jay Gruden is hoping that the league will reduce or revoke the penalty.
"Unfortunately, for Brandon, he's got a history of these types of events," Gruden told reporters. This is the sixth time Meriweather has been cited for a violation of player safety rules.
The Redskins contend that Meriweather could not avoid a helmet-to-helmet hit has both he and Smith lowered their heads as a pass sailed incomplete across the middle.
---The Seattle Seahawks reduced their roster to the NFL limit of 75.
The Seahawks placed linebacker Heath Farwell, cornerback A.J. Jefferson and guard C.J. Davis on injured reserve, designated defensive tackle Michael Brooks, wide receiver David Gilreath and linebacker Horce Miller as waived/injured, and put cornerback Eric Pinkins on the reserve/non-football injury list.
Farwell, Seattle's special teams captain, sustained a groin injury in a preseason game on Friday night against the Chicago Bears and will have surgery.
Also, the NFL fined the Seattle Seahawks $300,000 for violating the collective bargaining agreement provision on offseason no-contact rules.
ESPN reported that head coach Pete Carroll was fined $100,000 and the team $200,000.
The Seahawks have been accused of allowing players to engage in "excessive levels of on-field contact" during the team's mandatory minicamp for veterans on June 16.
---The Oakland Raiders placed cornerback D.J. Hayden on the reserve/physically unable to perform list.
Hayden underwent surgery on his right foot in July after suffering a stress fracture and will sit out at least the first six games of the regular season.
Selected No. 12 overall in the 2013 NFL Draft, Hayden has battled injury problems since joining the Raiders. He was limited to eight games and two starts as a rookie because of sports hernia surgery, finishing the season with 26 tackles and one interception.
Quarterback Trent Edwards was released. He was considered a long shot to make the final roster as he competed for a backup spot behind starter Matt Schaub with rookie Derek Carr and Matt McGloin.
Third-year wide receiver Juron Criner was waived, while second-year tight end Nick Kasa was placed on injured reserve. Safety Larry Asante, wide receiver Greg Jenkins and running back Kory Sheets were waived/injured, while guard Lucas Nix was waived after failing a physical.
---Josh Gordon's hearing on a DWI case in North Carolina was delayed until Nov. 18 after the Cleveland Browns wide receiver received a waiver.
The original court date was set for Tuesday, but Gordon's lawyer received a continuance. Gordon was stopped for speeding in Raleigh, N.C., in July and his blood-alcohol content tested at .09, just above the legal limit of .08 in North Carolina.
Gordon was driving a vehicle owned by Charlotte Hornets rookie P.J. Hairston when he was stopped at 3 a.m. on July 5 in Raleigh, N.C. The two athletes said they swapped cars at a local store. Gordon told police that he had a few drinks with vodka.
In the meantime, Gordon is still waiting for a ruling from the NFL on his appeal of an indefinite drug ban. He is facing a one-year suspension for a third failed drug test but hopes to have it shortened to as few as six games.
Also, the Browns placed offensive lineman Michael Bowie and linebacker Darius Eubanks on injured reserve and then added offensive lineman Nick McDonald on the reserve/non-football injury list to get the 75-man limit.
---Not satisfied with the veteran backups on the roster behind starter E.J. Manuel, the Buffalo Bills waived quarterback Thad Lewis just a day after severing ties with Dennis Dixon. They signed career backup quarterback Jordan Palmer.
Buffalo also placed linebacker Kiko Alonso on the reserve/non-football injury list. He had reconstructive knee surgery in July after tearing the ACL during an offseason workout and is not expected to play this season.
The Chicago Bears released the 30-year-old Palmer during the weekend after deciding to go with Jimmy Clausen. Palmer has not thrown a pass in the NFL since 2010 and only 15 in his career.
---The Tennessee Titans signed quarterback Dominique Davis to the roster to provide depth at the position for their final preseason game.
Starter Jake Locker is not expected to play much Thursday night against the Minnesota Vikings and backup Charlie Whitehurst has a sore right pinkie finger. That left rookie Zach Mettenberger as the only other available quarterback and prompted the signing of Davis.
The Titans are expected to keep Locker, Whitehurst and Mettenberger on the roster for the regular season.
---Dallas Cowboys receiver Dez Bryant is looking for a new contract, but if he doesn't get one by the start of the regular season, he'll put it on hold.
Bryant enters the final year of his rookie contract. He is scheduled to make $1.78 million this season.