Joe Mazzulla was caught by the cameras yelling "get up" at Jayson Tatum after the Celtics star had a hard fall.

Jayson Tatum took a hard fall on Sunday as the Boston Celtics tipped off their playoff run. In pursuit of banner No. 19 and ...

Now, as the Celtics prepare for Game 2 on Wednesday, head coach Joe Mazzulla provided an update, stating that Tatum is day-to ...

Joe Mazzulla had the strangest reaction to his injury. Tatum was actually seen yelling at him to get up while he was holding his wrist. Tatum ended up having an X-ray on the wrist following the game ...

Celtics head coach Joe Mazzulla explained a now-viral clip of him yelling at an injured Jayson Tatum during Boston's Game 1 ...

Boston Celtics head coach Joe Mazzulla expanded on his reaction to the viral moment when Jayson Tatum took a hard fall on a foul in the fourth quarter in Game 1 of the Eastern Conference playoffs ...

While the Celtics' roster deserves most of the credit for their success, it doesn't hurt to have a coach like Joe Mazzulla ...