CU: Stewart's injury regrettable – The Denver Post
Horse-collar tackle rule gets an update | Bladen Journal
Jameis Winston dragged down from behind, carted off
NFL approves expansion of horse-collar rule - ProFootballTalk
NFL approves expansion of horse-collar rule - ProFootballTalk
Gene Steratore on Twitter: "If a quarterback is inside the pocket, there can be no foul for a horse-collar tackle. However, once the QB is outside of the pocket, the horse-collar penalty
The Horse Collar Rule is a good rule that has room for improvement...