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The San Francisco 49ers VP of communications, Bob Lange, announced that Mostert is "questionable" to return to the game due to an ankle injury.
Last weekend, Mostert re-aggravated the ankle injury that forced the running back to miss several games earlier this season. He did not practice on Wednesday, was limited on Thursday, and was a full participant on Friday.
The Cowboys currently lead the visiting 49ers 24-17 in the third quarter at AT&T Stadium.
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