Testing on Tuesday confirmed what anyone who saw Jayson Tatum fall to the floor during Monday's Boston Celtics loss to the New York Knicks already feared: Tatum suffered a rupture of his right Achilles tendon late in the fourth quarter, sidelining him not only for the remainder of this postseason but also jeopardizing his availability for the 2025-26 season.
Given Tatum's importance to the defending champions, as their leading scorer and a three-time All-NBA first team pick (with a fourth likely on the way when this year's teams are announced soon), his injury is one of the most consequential in NBA history.