By Andrew Holleran Patrick Mahomes had to be restrained on the sideline at the end of Sunday afternoon’s Chiefs vs. Bills game at Arrowhead Stadium. The Bills topped the Chiefs, 20-17, on Sunday afternoon. Kansas City had a chance to tie or win it late, but the Chiefs were unable to move the ball down the field. Following the Chiefs’ final offensive play, a visibly heated Mahomes had to be restrained from his teammates. Apparently, Mahomes thought Von Miller was offsides on a big 3rd and 15 play, prior to the final fourth down play. Video of the incident is going viral on social media. Mahomes…