The Seattle Seahawks kept their word that they wanted Duane Brown to finish his career with the team as they signed him to long-term deal.

According to Ian Rapoport of NFL Network Insider, the Seahawks signed the left tackle to a three-year contract extension worth $36.5 million, per sources who were familiar with the deal.

Rapoport said the Seahawks and Brown were working on the contract extension for weeks. Pro Football Talk first reported the deal, before the Seahawks confirmed the signing.

After the news was leaked, Brown posted a photo of himself on his Twitter account with the caption "Looking forward to playing the rest of my career here! #GoHawks." Then, Brown posted a photo of himself on Instagram signing his new deal with the Seahawks.

Brown Officially Signed Extension On Saturday

Brown officially signed the deal on Saturday that will keep him with the Seahawks through the 2021 season. Brown was set to earn $9.75 million this season, but his salary will increase to $14 million with the new deal.

Including the remaining one year on his current deal, Brown has essentially signed a four-year deal worth up to $46.25 million overall. Contract details, such as guaranteed money, are not immediately available, but in terms of average salary per year ($11.56 million), Brown is the 10th highest paid left tackle in the NFL, per OvertheCap.com.

The Seahawks traded a second-round pick in 2019 and a third-round pick in 2018 to the Houston Texans for the 32-year-old Brown and a fifth-round pick. Brown held out last year as he hoped to get a new deal from the Texans. He played one regular-season game with the Texans before he was traded.

After acquiring Brown, Seahawks general manager John Schneider expressed interest in keeping the left tackle until his NFL career is finished. The 11-year pro immediately made an impact in Seattle, improving the Seahawks' offensive line as he finished with a pass-blocking efficiency of 97.0, seventh-best among tackles in NFL last season.

Pete Carroll Impressed With Brown

Seahawks head coach Pete Carroll said Brown was instrumental in the resurgence of his team's offensive line despite seeing action in just nine games last season. Brown suffered an ankle injury in his second game, but he still managed to earn a spot in the Pro Bowl.

"Duane made an immediate impression on us when he got here," Carroll says. "This is a real leader. He's a real man in that huddle and in the locker room, and we're very, very fortunate to have him."