The Boston Celtics received a troubling injury update just hours before their pivotal Game 7 showdown against the Philadelphia 76ers, putting their season in serious jeopardy.

Jayson Tatum, the Celtics' cornerstone star, has been downgraded to questionable due to knee stiffness. The news comes as a shock after the team initially appeared unconcerned about his condition. Tatum exited Game 6 in the third quarter and did not return, yet afterward, Celtics coach Joe Mazzulla insisted the forward was not injured. However, Saturday's midday downgrade tells a different story.

This development is a major blow for Boston. The Celtics entered the series as heavy favorites against the 76ers but have been pushed to the brink, now facing a do-or-die Game 7. Without Tatum, the challenge becomes exponentially steeper. The star forward has been the engine of Boston's offense, and his absence would leave a gaping hole in their lineup.

It's safe to assume Tatum will do everything possible to suit up and compete. But if his knee stiffness prevents him from playing, the Celtics' season could end the same way it started—with their leader on the sidelines, unable to impact the game. For a team with championship aspirations, this is the worst possible news at the worst possible time.