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.