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OAKLAND, CA - DECEMBER 24: Oakland Raiders head coach Jack Del Rio talks to field judge Brad Freeman #88 in the second quarter of the game against the San Diego Chargers at O.co Coliseum on December 24, 2015 in Oakland, California. (Photo by Lachlan Cunningham/Getty Images)

OAKLAND, CA - DECEMBER 24: Oakland Raiders head coach Jack Del Rio talks to field judge Brad Freeman #88 in the second quarter of the game against the San Diego Chargers at O.co Coliseum on December 24, 2015 in Oakland, California. (Photo by Lachlan Cunningham/Getty Images)