New York Giants running back Saquon Barkley has a sprained right ankle and his status for Thursday night’s game against the San Francisco 49ers is uncertain, a person familiar with the injury told The Associated Press on Monday.

The person spoke to The AP on condition of anonymity because coach Brian Daboll had said earlier in the day he did not know the extent of the injury. Daboll said the team’s medical staff would update him later Monday. The second-year coach has been the only one to speak about injured players during his tenure. He will talk again on Tuesday in Tempe, Arizona, where the Giants are preparing for Thursday’s game.

Daboll had said Barkley was being sent for further tests but his availability would probably be a game-time decision.