| http://www.w3.org/ns/prov#value | - There also is a second set of six footballs, used specifically for the kicking game, that are marked appropriately and remain in the possession of officials at all times??? The NFL's game operations manual states: Once the balls have left the locker room, no one, including players, equipment managers, ball boys, and coaches, is allowed to alter the footballs in any way.
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