FILE - This Oct. 31, 2010, file photo shows Tennessee Titans running back Chris Johnson during an NFL football game against the San Diego Chargers, in San Diego. From Troy Polamalu's thick mass of curls to Domata Peko's fluffy, lionlike mane to Johnson's dreads to Clay Matthews' grunge look, players all over the NFL are going long. (AP Photo/Denis Poroy, File)
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