Hanlen helped Tatum become the player he is today, and continues to help the Celtics star hone his craft to new heights. And now, Hanlen has a book.

Jayson Tatum said it's special playing Sunday as part of All-Star weekend, but the NBA changed up the game's format this year.

NBA All-Star weekend in San Francisco was one to remember, especially for Jayson Tatum. The Boston Celtics forward, playing in his sixth All-Star game