Jayson Tatum will not play Game 7 against the 76ers due to left knee stiffness, leaving Boston searching for a new lineup.
A late-season injury swing has Boston bracing for a different kind of Game 7: Jayson Tatum has been ruled out with left knee stiffness.
The Celtics announced the decision roughly 90 minutes before tipoff of the winner-take-all first-round matchup against the Philadelphia 76ers on Saturday night.. Coach Joe Mazzulla said the call was made after Tatum came in dealing with knee discomfort and the team’s medical staff determined it was best that he not play.
This is the kind of moment that can reshape a playoff series in a hurry. Even when teams believe they have handled injury risk responsibly, the absence of a star forces immediate adjustments in roles, minutes, and game planning.
Meanwhile, the uncertainty now centers on who will take Tatum’s spot in the starting lineup. The Celtics did not specify a replacement, leaving fans and opponents to watch warmups closely and reassess expectations for who will lead Boston’s offense.
Tatum’s availability had already been on watch after a brief exit in Game 6. He left during the third quarter for unspecified treatment to his calf, and later described his condition as manageable when the game moved away from reach.
For Boston, the challenge goes beyond one matchup. A Game 7 without its central creator can change how defenses are set, which matchups get targeted, and how quickly a team can find rhythm when the margins tighten.
After Game 6, Tatum suggested his leg was only “a little stiff,” and said he did not return after a short assessment and time on the exercise bike because the game was already decided and the starters had been pulled.
Now, with Tatum sidelined due to the knee issue, the Celtics will have to rely on depth and flexibility to keep the pressure on Philadelphia as both teams fight for the next round. The decision is a reminder of how quickly a playoff run can pivot, and why readiness matters just as much as talent.