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Celtics Secure Joe Mazzulla in Multi-Year Contract Extension

The extension anchors Boston’s bench leadership during a summer of roster change following Jayson Tatum’s Achilles injury.

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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
Celtics coach Joe Mazzulla talks with guard Jaylen Brown during the NBA playofs.
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Overview

  • Terms of Mazzulla’s multi-year extension were not disclosed by the Celtics.
  • Mazzulla compiled a 182–64 regular-season record and a 33–17 playoff mark over three seasons and guided the team to the 2024 NBA title.
  • At 37, he became the youngest NBA champion coach since Bill Russell led the Celtics in 1969.
  • The extension comes as Boston sheds veteran contracts to avoid second-apron luxury-tax penalties and prepares for Tatum’s lengthy Achilles rehabilitation.
  • Mazzulla rose from assistant coach in 2019 to interim head coach in 2022 after Ime Udoka’s suspension and was named full-time coach in 2023.