Kansas City Chiefs v Oakland Raiders

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Linebacker Cory Greenwood of the Kansas City Chiefs warms up before... News PhotoAmerican Football - Sport,California,Cory Greenwood,Full Length,Horizontal,Kansas City Chiefs,Linebacker,Match - Sport,NFL,Oakland - California,Oakland Raiders,Sport,Stadium,USA,Warming Up,o.Co ColiseumPhotographer Collection: Getty Images Sport 2012 Jason O. WatsonOAKLAND, CA - DECEMBER 16: Linebacker Cory Greenwood #93 of the Kansas City Chiefs warms up before the game against the Oakland Raiders at O.co Coliseum on December 16, 2012 in Oakland, California. The Oakland Raiders defeated the Kansas City Chiefs 15-0. Photo by Jason O. Watson/Getty Images)