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Celtics extend Joe Mazzulla
Boston signs Joe Mazzulla to a multiyear extension, terms not disclosed.

The Celtics sign head coach Joe Mazzulla to a multiyear extension.
Celtics extend Joe Mazzulla on multiyear deal
Boston announced on Friday that head coach Joe Mazzulla has signed a multiyear extension. The team did not disclose the length or terms of the deal. Mazzulla, 37, has guided the Celtics to the playoffs in each of his three seasons and helped secure the 2023-24 NBA title. He joined Boston in 2019, spent three seasons as an assistant, and became interim head coach at the start of the 2022-23 season after Ime Udoka's suspension.
The move signals the club’s intent to maintain stability as it pursues another deep playoff run. Celtics president Brad Stevens has publicly backed Mazzulla and noted that the coach had already received at least one prior extension. Mazzulla called the pact a blessing and thanked his family, staff, and players for their support during a period of sustained success.
Key Takeaways
"a blessing"
Mazzulla describes the contract extension
"We are thankful for the partnership with our ownership groups, Brad's mentorship, and the support of our staff. Most importantly, I am grateful for the players I have been able to coach the past three seasons."
Mazzulla on the extension and support around him
"He's worked hard and accomplished amazing things in his first three years as a head coach including averaging over 60 wins per season and winning the 2024 NBA Championship."
Brad Stevens praising Mazzulla's impact
"He understands the job and has a passion for the Celtics that is only rivaled by our most die-hard fans."
Stevens on Mazzulla's leadership
Continuity has become a core strategy for the Celtics after a period of turnover in coaching. Extending a relatively young coach who has already delivered a championship signals a long view for the franchise and trust in the culture built around the roster. The decision raises questions about how long patience will endure if results dip or if the team faces tougher postseason rounds.
The extension also reflects how ownership and management align on a shared vision for Boston. It could reduce distractions as the team pursues the next title, but it also elevates expectations for Mazzulla to sustain peak performance over multiple seasons.
Highlights
- Continuity beats frequent changes in a high stakes game
- Time is an ally when the plan is clear
- Leadership built in the gym and in the draft room
- Boston bets on a long arc not a single season
Continuity in Boston signals a clear bet on sustained excellence.
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