Watch: Mitch Marner's summer training moves are out of this world

by
John E. Sokolowski / USA Today Sports

How exactly does he do it?

Toronto Maple Leafs forward Mitch Marner put on quite a show in the summer training video posted on Twitter by his father, Paul.

It truly has to be seen to be believed, especially the final trick.

Marner registered 19 goals and 42 assists as a rookie with the Maple Leafs last season.

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