The Boston Celtics have signed head coach Joe Mazzulla to a multi-year contract extension, the team announced. Mazzulla has led the Celtics to a 182-64 record (.740) over his first three seasons, including a 2024 NBA Championship run where Boston went 16-3 in the playoffs. He’s the youngest head coach to win the Finals since Bill Russell in 1969. Brad Stevens praised Mazzulla as a “gifted leader” who’s averaged over 60 wins per season and brings a daily commitment to improvement. #Celtics #BostonCeltics #NBA #NBANews #JoeMazzulla #CelticsNation #NBAChampions #BleedGreen #Basketball #Sports