In the summer of 1925, New York Yankees’ first baseman Wally Pipp asked his manager for a day off due to a headache; his replacement was a young player named Lou Gehrig, who never gave the job back as he launched his Hall of Fame career from that moment.
The Kansas City Chiefs have a similar — albeit not as significant — situation unfolding in their linebacker corps; rookie linebacker Nick Bolton has filled in at the MIKE linebacker position for the injured Anthony Hitchens for the last two weeks.