On Saturday, the sides made progress toward that goal.
The team announced they've signed Brown to a multi-year contract extension. NFL Network's Ian Rapoport reports the extension worth $36.5 million, per sources informed of the deal. Sides have been working on it for weeks, Rapoport added.
Brown was entering the final year of his contract worth $9.75 million. Now he'll be in Seattle through the 2021 season.
""It's a great feeling," Brown said Saturday. "I'm extremely happy and grateful. Very thankful to the organization, [team owner] Paul Allen, John Schneider, coach [Pete] Carroll, everybody that worked to secure me here for a long time. I'm looking forward to finishing my career here. It's a great organization. I love the team, love the city, love the fans and I'm just immensely grateful for this opportunity."
Brown immediately upgraded one of the worst offensive lines in the NFL upon his arrival in Seattle. The left tackle ended the year with a pass-blocking efficiency of 97.0, seventh-best among tackles in NFL last season, according to Pro Football Focus.