LAKE FOREST, Ill. — Chicago Bears quarterback Jay Cutler is listed as doubtful for Sunday's game against the Tennessee Titans due to a shoulder injury.

Backup Matt Barkley is set to make his first NFL start.

Cutler suffered a right shoulder injury last Sunday against the New York Giants and has not practiced all week. Initial reports said Cutler could be done for the season, but coach John Fox this week said it's not a season-ending injury.

Barkley has played for the Bears only after backup Brian Hoyer broke his left arm Oct. 19 at Green Bay. He also played in relief for Philadelphia in 2013 and 2014, and is 36 for 65 for 381 yards with six interceptions and no touchdown passes.

Seahawks' Thomas out

RENTON, Wash. — Seahawks free safety Earl Thomas will miss the first start of his professional career Sunday against the Tampa Bay Buccaneers.

Thomas was ruled out Friday due to a hamstring strain suffered during last week's victory over the Philadelphia Eagles. Thomas has started 106 straight regular-season games and 12 playoff games without missing a game due to injury.

Steven Terrell is expected to start in Thomas' place against Tampa Bay. It will be his first career start.

Giants hurting at guard

The New York Giants are going to be changing their starter at left guard for the fourth consecutive week.

Coach Ben McAdoo announced Friday that guards Justin Pugh, Brett Jones and Marshall Newhouse all will miss Sunday's game in Cleveland. The rookie head man also said backup guard Adam Gettis is dealing with a calf injury.

Gettis has practiced this week, but it is uncertain whether the Giants (7-3) can count for the contest against the Browns (0-11).

Veteran Will Beatty, who started at tackle for most of his career with the Giants, and Shane McDermott, who was cut before the season and recently added to the active roster, are the only other offensive linemen on the roster.