Improper footwear is apparently the source of Antonio Brown's foot injury.
PFT Live's Chris Simms reported the Oakland Raiders wide receiver walked into a cryotherapy machine without the correct protection and suffered frostbite on his feet as a result.
NFL Network's Ian Rapoport reported Sunday that Brown had visited a foot specialist and is day-to-day with the injury.
This article will be updated to provide more information on this story as it becomes available.
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