The Rams informed Sullivan on Tuesday that they wouldn't exercise his $6 million team option for 2019, Lindsey Thiry of ESPN.com reports.

EDGE Analysis

Sullivan is still a solid player despite his advanced age, so his release is likely only for cap-relief purposes. With the 34-year-old's salary off the books, the Rams are expected to turn to 2018 fourth-round pick Brian Allen as their first-string center when OTAs begin.

Sullivan returned to Sunday's game after being evaluated for a concussion, Myles Simmons of the Rams' official site reports.

EDGE Analysis

Sullivan briefly left Sunday's contest after being kneed in the back of the head in the first quarter, but he passed the necessary concussion tests, and was cleared to return to action.

Sullivan exited Sunday's game against the Bears and is being evaluated for a concussion.

EDGE Analysis

Sullivan was injured in the first quarter and replaced by Brian Allen. The tests will determine whether or not Sullivan can return to the game, or be placed in the league's concussion protocol.

Sullivan (arm) is not listed on Thursday's injury report, Myles Simmons of the Rams' official site reports.

EDGE Analysis

Sullivan suffered an arm injury back in late July, but was never in any real danger of missing Week 1. The starting center for the Rams looks good to go ahead of Monday's season opener in Oakland.

Sullivan suffered an arm injury during practice Sunday, Lindsey Thiry of ESPN reports.

EDGE Analysis

Head coach Sean McVay said Sunday that team trainer Reggie Scott did not seem too concerned about the center's injury. Sullivan was forced to leave practice, but he shouldn't be out for too long.

The Rams signed Sullivan to a two-year contract Friday.

EDGE Analysis

The Rams will bring back their starting center from one of the best NFL offenses in 2017, and with him a continued feeling of familiarity for starting quarterback Jared Goff.

Sullivan (rest) won't play in Sunday's game against the 49ers.

EDGE Analysis

Sullivan doesn't appear on the injury report. However, the Rams evidently believe they have little to gain by winning Sunday, so they're opting to rest their 32-year-old veteran. Second-year center Austin Blythe will presumably take his place in the starting lineup.

Sullivan injured his hand in Sunday's game against the Titans, Alden Gonzalez of ESPN.com reports.

EDGE Analysis

He will be questionable entering Week 17 as the Rams prepare for the 49ers. Austin Blythe would replace Sullivan if he can't go.

Sullivan hurt his knee Sunday against the Cardinals and is questionable to return, Lindsey Thiry of the Los Angeles Times reports.

EDGE Analysis

Sullivan is a key part of one of the best offensive lines in football, but if he can't return, expect Austin Blythe to take over the remaining snaps.

Sullivan (hip) is listed as active for Sunday's game against the Cowboys, Rich Hammond of the Los Angeles Daily News reports.

EDGE Analysis

Now that Sullivan's healthy, he'll slot back in as the Rams' starting center.