ORCHARD PARK, N.Y. -- Buffalo Bills coach Rex Ryan says it was encouraging to see safety Aaron Williams report to the team's facility on Monday, a day after the player sustained a neck injury.

Ryan says Williams wore a neck brace and is still feeling stiff and sore after being examined and released from the hospital on Sunday.

Though tests revealed the injury wasn't serious, Ryan says it's "probably a stretch" to expect Williams to play in Buffalo's game at Miami on Sunday.

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Williams was hurt while diving headfirst in an attempt to tackle Patriots receiver Julian Edelman in the third quarter of a 40-32 loss to New England. Williams was placed on a stretcher and his body immobilized before being loaded into an ambulance.

He was released from a hospital about three hours later.