Tatum wants to be the greatest Celtic of them all, and for him, that means surpassing Larry Bird, his fellow Midwesterner.

Have you ever wondered what it is that NBA trainer to the stars Drew Hanlen does to boost the games of players like star Boston Celtics forward Jayson Tatum? The Pure Sweat head honcho recently took some time on a recent episode of the NBC Sports Boston's "Hoopin'" show to talk it over with NBC Sports host Kayla Burton.

Tatum has been considered the best player on the Celtics for a while now. Even though he didn't win the NBA Finals MVP or even the Eastern Conference Finals MVP, he is considered better than Brown. Now that he's won a championship, does he have anything more to prove? The answer is yes, and the prime example of why happened over the summer.