Dallas Cowboys guard Zack Martin underwent an MRI on his back, and the results "encouraged" the team, according to ESPN's Adam Schefter.
Mike Fisher of 105.3 The Fan in Dallas first reported Saturday that the MRI indicated Martin wasn't suffering from a serious back injury.
Schefter added the Cowboys don't have a firm date for Martin's return.
This article will be updated to provide more information on this story as it becomes available.
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