According to NFL.com, Sitton was informed by the team on Tuesday that they won't be picking up his $8 million option for the 2018 season. Over the past two seasons, Sitton played in 26 of a possible 32 regular-season games for Chicago, a total that included 25 starts.
Although the Bears will be saving some serious cap money by not paying Sitton $8 million, the downside for them is that they'll be losing a four-time Pro Bowler who's been one of the best guards in the NFL over the past few seasons.
As a matter of fact, according to numbers from Pro Football Focus, Sitton graded out as the fifth-best offensive guard in the NFL in 2017. Cutting a quality player to save money can make some sense, but in the Bears' case, they don't have a lot of depth at the position, which is why their decision to get rid of Sitton is somewhat surprising.
https://www.cbssports.com/nfl/news/...-time-pro-bowl-offensive-lineman-josh-sitton/