While the injury shouldn't derail Tatum's career, it does give the Celtics a major obstacle to overcome. Boston has been to the conference finals five times and has had a pair of NBA Finals appearances—including a win last year—since 2017. Much of that success, especially over the past five or so years, has been largely due to Tatum.

Jayson Tatum's torn Achilles tendon, without hyperbole, is among the most consequential injuries in NBA history. Kevin Durant comes to mind as a similarly gifted player to suffer such an injury, but he was almost 31 when he went down in the 2019 NBA Finals.

May 12, 2025; New York, New York, USA; Boston Celtics forward Jayson Tatum (0) dunks the ball in the second half during game four of the second round for the 2025 NBA Playoffs against the New York Knicks at Madison Square Garden. Mandatory Credit: Vincent Carchietta-Imagn Images / Vincent Carchietta-Imagn Images