Although Garrett said the following according to DC.com:
Garrett, Cowboys Not Alarmed By Smith’s Back Issues
(Aug. 9; 12:27 p.m.) Last year, Tyron Smith fought through back and neck injuries all season, even sitting out a couple of games near the end of the regular season.
While he’s been relatively healthy all summer long, Smith has now started to experience more issues with his back, causing him to sit out of a few practices over the last two weeks. And even when he’s returned, Smith hasn’t looked himself, getting beat a few times in pass-rushing drills.
Head coach Jason Garrett said Smith is dealing with “tightness” in his back but doesn’t seem overly concerned at this point.
“We don’t think issue is related to anything in his past,” Garrett said. “For a guy like that, we just want to be deliberate bringing him back.”
Garrett said Smith won’t practice on Wednesday, but that was more scheduled as six other vets – Bryant, Witten, Crawford, Lee, Scandrick and McFadden are taking veteran rest days.