X-rays on Hernandez's ankle were negative, and the Patriots believe the injury to be a high ankle sprain, a source who was briefed on the tight end's injury told NFL.com and NFL Network's Albert Breer.
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After the game, Hernandez was seen in the locker room with crutches and a walking boot on his right foot, according to the Boston Herald.
Hernandez remained down on the field for several minutes before being helped down the stairs into the Patriots' locker room with a trainer on each side of him.