Tatum dropped to the floor, slapped the hardwood and pleaded for his team to call a timeout after Knicks forward OG Anunoby converted a fastbreak dunk. Tatum grimaced in pain for a few more seconds before trainers attended to him on the floor.

Jayson Tatum's Achilles injury could see him miss most of next season, placing further pressure on the Boston Celtics' offseason activity with major roster changes expected

Jayson Tatum’s Achilles tear ends his season—but how long will he be out? History offers clues on what’s next.

Trainers help Boston Celtics' Jayson Tatum (0) off the court after he was injured during the second half of Game 4 in the Eastern Conference semifinals of the NBA basketball playoffs against the New York Knicks Monday, May 12, 2025, in New York. (AP Photo/Frank Franklin II) AP