Jaylen Brown has agreed to a five-year, $304 million contact extension with the Boston Celtics, making it the richest in NBA history. A tweet from Shams Charania read: “BREAKING: Boston Celtics star Jaylen Brown has agreed to a five-year, $304 million supermax contract extension with the franchise, per sources. This is the richest deal in NBA history, negotiated by agent Jason Glushon. Fully guaranteed, with a trade kicker. No player option.”

Brown became eligible for a supermax extension once he earned All-NBA honors this season. Brown was eligible for this contract on July 1, but the two sides had issues with the specifics of the deal.  As noted, the deal is currently the most expensive contract in NBA history, and based on the assumed 10% growth in the salary cap (the maximum allowable within the CBA), it will pay Brown a total of $303,734,891 with an average of $60,746,978.20 per year.

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