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20h ago

Celtics Sign Joe Mazzulla to Multi-Year Extension as Team Navigates Offseason Overhaul

The extension arrives as Boston’s franchise player rehabs a torn Achilles, with the club trimming veteran salaries to avoid second-tax apron penalties.

May 16, 2025; New York, New York, USA; Boston Celtics head coach Joe Mazzulla coaches against the New York Knicks during the first quarter of game six in the second round of the 2025 NBA Playoffs at Madison Square Garden. Mandatory Credit: Brad Penner-Imagn Images/File Photo
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Celtics coach Joe Mazzulla talks with guard Jaylen Brown during the NBA playofs.
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Overview

  • The Celtics signed Joe Mazzulla to a multi-year contract extension on August 8, with terms withheld under team policy.
  • At 37, Mazzulla has posted a 182-64 regular-season record and a 33-17 playoff mark over three seasons, leading Boston to its 18th championship in 2024 and back-to-back 60+ win campaigns.
  • Mazzulla called the new deal “a blessing,” crediting his faith, family, ownership partnership, Brad Stevens’s mentorship and his coaching staff and players for his rapid rise.
  • Boston traded Kristaps Porzingis and Jrue Holiday and allowed Luke Kornet to leave in free agency to get under the NBA’s second-tax apron after operating above it last season.
  • The extension ensures coaching stability as Boston enters 2025-26 with a retooled roster, tight salary-cap constraints, and Jayson Tatum likely sidelined for most of the season.