Jessie Bates, the Bengals' second-round safety barely old enough to vote but is playing up to the pollsters’ high expectations, faces the most exhaustive challenge of his brief career Sunday night (8:20 p.m.-Cincinnati's Channel 5) in Kansas City.  Preparing to play without his mentor (strong safety Shawn Williams is battling a concussion) and slot corner (Darqueze Dennard’s arm is in a sling), Bates is studying a Kansas City offense averaging more than 35 points and 418 yards per game.