For Ravens’ John Urschel, Playing in the N.F.L. No Longer Adds Up

Urschel, who had spoken about balancing concerns about the safety of the game and his love for it, left before the team’s first full practice of the coming season.
Read more: https://www.nytimes.com/2017/07/27/sports/football/john-urschel-baltimore-ravens-retires-nfl-cte-study.html?source=Snapzu