Thomas (migraine) won't return this season, head coach Brian Schottenheimer revealed Friday, Clarence Hill Jr. of alldlls.com reports.

EDGE Analysis

Thomas has been on the reserve/non-football illness list since Nov. 11. The 25-year-old safety will likely need to resolve his migraine issues prior to signing with any NFL team after he becomes an unrestricted free agent in the offseason.

The Cowboys placed Thomas (migraines) on the reserve/non-football illness list Tuesday, Joe Hoyt of The Dallas Morning News reports.

EDGE Analysis

Thomas has missed two of the past three games due to migraines, and he'll now miss at least the next four contests. Thomas had started each of the last three games in which he appeared, logging at least 91 percent of the defensive snaps in all of those, so it's a significant loss to the Dallas defense. The Cowboys don't have a single truly healthy safety on the roster, as all five are dealing with some sort of injury.

Thomas (migraine) is active for Monday's game against the Cardinals.

EDGE Analysis

Thomas has missed each of the Cowboys' last two games with a migraine, but he'll be ready to return to face Arizona on Monday Night Football. He should serve as the starting free safety and be in a good position to post solid IDP stats.

Thomas (migraine) is listed as questionable ahead of Monday's game against the Cardinals, Todd Archer of ESPN.com reports.

EDGE Analysis

Thomas has been dealing with a migraine for the last three weeks, and he's missed two games as a result. He turned in a full full practice Saturday, which is a positive sign for his return, though his status won't be official until shortly before Monday night's kickoff.

Thomas (migraine) was a limited participant in Thursday's practice, Jon Machota of The Athletic reports.

EDGE Analysis

A migraine has prevented Thomas from playing in the Cowboys' last two games. He would likely have to log a full practice over the next two days to have a realistic chance of being cleared to play against the Cardinals on Monday. Markquese Bell would continue to enjoy an expanded role on defense for as long as Thomas is on the shelf.

Thomas (migraine) has been ruled out for Sunday's Week 8 matchup against Denver.

EDGE Analysis

Thomas has been dealing with a migraine for over a week. He was initially deemed questionable for Week 8 on Friday's injury report but has since been downgraded to out and won't travel to Denver. Markquese Bell started and played 100 percent of the Cowboys' defensive snaps last week against Washington and figures to log a hefty workload again Sunday.

Thomas (migraine) is questionable for Sunday's game against the Broncos, Patrik Walker of the Cowboys' official site reports.

EDGE Analysis

Thomas was limited earlier in the week and then logged a DNP on Friday due to migraine issues. If Thomas is unable to play, Alijah Clark would likely draw the start since Donovan Wilson (elbow) has already been ruled out against Denver.

Thomas (migraine) was limited in practice Wednesday, Clarence Hill Jr. of AllDLLS.com reports.

EDGE Analysis

Thomas was sidelined by the illness in Week 7 after being added to the injury report Thursday. It's positive that he was able to take the field in any capacity Wednesday, but his status for Sunday's matchup against the Broncos remains unclear.

Thomas (migraine) is inactive for Sunday's game against the Commanders.

EDGE Analysis

Thomas missed Friday's practice due to a migraine, and the issue is severe enough for him to miss his first game of the regular season. Markquese Bell will likely start at safety alongside Donovan Wilson in Thomas' absence.

Thomas (migraine) did not practice Friday and is listed as questionable for Sunday's game against the Commanders, Jon Machota of The Athletic reports.

EDGE Analysis

Thomas appeared on Thursday's injury report due to a migraine. His inability to practice Friday indicates that he is leaning toward the doubtful side of playing Sunday, though his official status may not be known until Dallas announces its list of inactive players about 90 minutes prior to the 4:25 p.m. ET kickoff. Markquese Bell figures to be the top candidate to start at safety alongside Donovan Wilson if Thomas is not cleared to play.