PITTSBURGH, PA - DECEMBER 21:  Defensive linemen Cameron Heyward #97, Steve McLendon #90 and Stephon Tuitt #91 of the Pittsburgh Steelers kneel at the line of scrimmage during a game against the Kansas City Chiefs at Heinz Field on December 21, 2014 in Pittsburgh, Pennsylvania.  The Steelers defeated the Chiefs 20-12. (Photo by George Gojkovich/Getty Images)