Celtics extend Jayson Tatum with largest deal in NBA history, reports say

CLEVELAND, OH - MAY 11: Jayson Tatum #0 of the Boston Celtics celebrates during the game against the Cleveland Cavaliers during Round 2 Game 3 of the 2024 NBA Playoffs on May 11, 2024 at Rocket Mortgage FieldHouse in Cleveland, Ohio. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this Photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. Mandatory Copyright Notice: Copyright 2024 NBAE (Photo by Brian Babineau/NBAE via Getty Images)