They will have to pay him $13 million combined in 2016 and 2017 with $9 million guaranteed. His $6.75 million this season is guaranteed and $2.25 million of his base salary for 2017 is fully guaranteed for injury right now and becomes guaranteed for skill and cap if he is on the team's roster on the third day of the league year next March. The Bears must hold an $8 million option for 2018. They must exercise that option between five days after the Super Bowl LII and five days before the start of the league year in March 2018. Sitton's contract would not be guaranteed for 2018 and if the Bears want to part ways with him, they have to make him a street free agent before the opening of free agency. That puts Sitton in position to get a head start on searching for a new team if he isn't in the Bears' plans. He will be 31 at the time and will be turning 32 before the 2018 training camp. It's a solid contract for the club and an addition general manager Ryan Pace could not have dreamed of two weeks ago.