Getty BOSTON, MASSACHUSETTS - MAY 14: Jaylen Brown #7 of the Boston Celtics reacts against the New York Knicks during the third quarter in Game Five of the Eastern Conference Second Round NBA Playoffs at TD Garden on May 14, 2025 in Boston, Massachusetts. T he Boston Celtics made the bold decision to sign Jaylen Brown to a historic five-year $285 million contract extension in 2023. At the time, it was the l argest contract in NBA history , but it was recently passed by his teammate, Jayson