Head coach Joe Mazzulla has signed a multi-year contract extension with the Boston Celtics.

The team announced his signing on Friday but did not reveal either the length of the deal or its monetary value.

Mazzulla, 37, has compiled a 182-64 regular-season record and a 33-17 playoff mark in three seasons with Boston. The Celtics won the NBA title in 2024.

He was the youngest head coach to win the NBA Finals since the 1968-69 season, when Bill Russell, then 35, led the Celtics to the NBA championship as a player-coach.

“We are very excited that Joe has agreed to extend with the Celtics,” said Brad Stevens, the team’s president of basketball operations. “He understands the job and has a passion for the Celtics that is only rivaled by our most die-hard fans. He’s worked hard and accomplish

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