FOXBOROUGH, Mass. -- Five-time Pro Bowl defensive lineman Richard Seymour has been traded from the New England Patriots to the Oakland Raiders, giving the rebuilding franchise a veteran stalwart up front.
In return, the Patriots received a first-round draft choice in 2011.
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Seymour was in the final year of the four-year extension he signed in 2006. He was due to make $3.685 million.
"From nearly the day he arrived in 2001, Richard Seymour established himself as one of our premier players for nearly a decade," Patriots coach Bill Belichick said Sunday. "His presence has been felt as a force on the field, a respected man off it and a multiyear champion."
The 29-year-old Seymour was drafted by the Patriots sixth overall in 2001, and started 105 of 111 games over eight seasons. He made 460 tackles and 39 sacks, and in 2002 was selected to the first of five consecutive Pro Bowls.
Seymour, who earned three Super Bowl titles with the Patriots, matched his career high with eight sacks in 2008.
The move is only the latest as the Patriots continue to get younger on defense. Linebacker Mike Vrabel was traded to Kansas City in the offseason, safety Rodney Harrison announced his retirement, and more recently Tedy Bruschi officially called it a career after 13 seasons.
"Any transaction we make is with the goal of what is best for our team and, as difficult as it is to part ways with a player of Richard's stature, many factors were taken into account when we considered this trade," Belichick said.
Sack Machine
Richard Seymour is off to Oakland after tying a career best with eight sacks in 2008. Here's a look at Seymour's best seasons in terms of sacks:
Sacks
2008 8*
2003 8
2002 5.5*
2004 5
*Led team
"As an organization, we feel the trade with Oakland brings sufficient value and is in the long-term interest of the club," he added. "We are extremely grateful for the huge impact Richard's elite level of performance had on our success and we wish him the very best during the rest of his career."
The Patriots, who went 3-1 in the preseason, begin the regular season Sept. 14 against the Buffalo Bills at Gillette Stadium.
The addition of rookies Myron Pryor and Ron Brace to a defensive line that also includes veterans Vince Wilfork, Ty Warren, Jarvis Green and Mike Wright made Seymour expendable.
"It's the nature of the business," said veteran running back Kevin Faulk, the longest-serving player on the team after Bruschi's departure. "They have an agenda upstairs, and the coaches decide who comes and goes. You can't do nothing about it."
Faulk said the team will miss the way Seymour carried himself as a person and a player.
"He was a quiet leader," second-year linebacker Jerod Mayo said. "He led by his actions. He'll be dearly missed as a teammate and as a player on the field. But we have players that are ready to step up."
When asked if the Pats might be better without Seymour, Mayo said: "Ask me after Game 1."
In a corresponding move, the Patriots reached agreement Sunday with free-agent guard Kendall Simmons, a source close to the player told ESPN NFL Insider Adam Schefter. Simmons will fill the roster spot vacated by Seymour.
A former first-round pick of the Steelers, Simmons appeared in four games for Pittsburgh last season. He worked out for New England last week.
Kendall is expected to sign later Sunday.