Jayson Tatum's longtime trainer Drew Hanlen appeared to take an indirect swipe at Celtics head coach Joe Mazzulla.

Derrick White had a forgettable December, but some words from Joe Mazzulla helped him start the new year off right ...

Jayson Tatum came to Joe Mazzulla before the game and asked to guard Anthony Edwards. He rose to the occasion, and the ...

Celtics coach Joe Mazzulla freely admitted Tuesday that his team had to improve on both sides of the ball to emerge from its ...

Joe Mazzulla expresses excitement for Boston Celtics' tough upcoming schedule, looking forward to the team's challenges in ...

The Boston Celtics entered their game against the Indiana Pacers on the back of a two-game losing streak. Joe Mazzulla's team ...

Joe Mazzulla rattled off a series of stats to support the Celtics' defense, which has faced criticism during the team's ...

After another loss against a team they ought to have beaten thanks in part to subpar shooting from beyond the arc, Mazzulla ...

Boston Celtics head coach Joe Mazzulla shrugged off a tense interaction with a ref after their loss to Chicago on Thursday, ...

Boston Celtics head coach Joe Mazzulla is excited by the slate of tough games his team will face over the next month.

The defending NBA champions, Boston Celtics, are fighting to turn things back around after coming off their fourth loss in ...

Joe Mazzulla turned to a seldom used tactic in the first quarter that set the stage for a Celtics blowout Friday.