Can Marcus Stroman teach other athletes to throw as hard as he can?

Marcus Stroman graduated from Duke this year, but now the student has become the teacher. He's not presiding over some graduate seminar, though (at least, as far as we know). Instead, he held a mini clinic to teach other Canadian athletes how to throw a fastball:

Watch @MStrooo6 show @cmcdavid97, @tseguinofficial, and @22wiggins how to throw: https://t.co/huxKipif9y pic.twitter.com/hviVku4msJ

— VICE Sports (@VICESports) August 4, 2016

Want to watch hockey players Tyler Seguin and Connor McDavid, tennis player Denis Shapovalov and Minnesota Timberwolf/fashionista Andrew Wiggins try to light up a radar gun? Just head over to Vice Sports to check it out.
Who will throw the fastest? Who will the Blue Jays try to add to their roster? Not to give anything away, but we already know Wiggins and Stro make great teammates.