De Grasse has had a good summer, capturing his fourth straight diamond league win.
http://www.sportsnet.ca/olympics/and...ue-win/sn-amp/
The World Championships in August should be De Grasse's last chance to beat Bolt before the Jamaican retires. Can he do it?
https://www.thestar.com/sports/amate...sain-bolt.html
Would be a great achievement for the kid!