EAST RUTHERFORD, N.J. (AP) — Mykel Williams suffered a knee injury in the San Francisco 49ers’ victory at the New York Giants on Sunday and coach Kyle Shanahan is worried the rookie edge rusher’s season could be over.

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Shanahan said the fear after Williams went down with four minutes left was that it’s a torn ACL.

“You never know till tomorrow,” said Shanahan, who got the chance to catch up with Williams after the Niners beat the Giants 34-24. “He’s just down. You never know, so I said: ‘Hey, hopefully it’s not the worst. But if it is, yeah, it sucks for this year, but that’s all it sucks for. You’ll be back next year, and this won’t affect you at all.’”

Williams was the 11th pick in the draft out of Georgia, selected to hel

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