Sandra Brunson (mother) will serve as President, Erica Brunson (sister) will serve as Director of Client Services and Co Via @ChrisBHaynes on X

What happened: Chris Haynes said Sandra Brunson will serve as president of Thirty Third Management Group, while Erica Brunson will handle client services. Connor Cashaw is set to join the family-run venture as director of business development. The firm is launching to manage Jalen Brunson's off-court business and player representation work.

Why it matters: The move gives Brunson a family-controlled structure for sponsorship, branding and representation as NBA business activity shifts into the 2026-27 offseason. It also expands the New York Knicks star's footprint beyond the court after New York's title run put the franchise at the center of league attention.

What to watch: Watch for the full launch announcement and any first client moves tied to the firm's representation arm.

Sources