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

Boston Celtics star Jayson Tatum is in danger of missing time with an injury that Joe Mazzulla clearly did not think was that serious.

There is, however, some cause for concern after Jayson Tatum took a hard fall following a flagrant foul from Kentavious Caldwell-Pope. Celtics coach Joe Mazzulla, who captured some attention for telling his superstar to simply get up after the collision,