"Unless something changes here in the next 24 hours, I don't see Zack participating," Cowboys head coach Mike McCarthy told reporters on Friday, according to team writer David Helman.
Martin was forced out of Monday night's loss to the Arizona Cardinals in the first quarter after being evaluated for a concussion.
The news forces yet another alteration along Dallas' blocking unit. One of the most injury-riddled groups league-wide, the Cowboys will start nearly an entirely new line compared to training camp.
|Projected Week 1 starters||Potential Week 7 lineup|
|Tyron Smith (LT)||Cameron Erving (LT)|
|Connor Williams (LG)||Connor Williams (LG)|
|Joe Looney (C)||Tyler Biadasz (C)|
|Zack Martin (RG)||Connor McGovern (RG)|
|La'el Collins (RT)||Terence Steele (RT)|
Smith, Looney, and Collins are currently on injured reserve. Backup left tackle Brandon Knight had knee surgery on Tuesday and is expected to miss at least a couple of weeks.
Dallas currently sits second in the NFC East at 2-4.