Jayson Tatum will miss at least the rest of the playoffs and beyond. The Celtics announced Tuesday that Tatum underwent successful surgery to repair a ruptured right Achilles tendon. Considering the severity of the injury, Tatum will be expected to miss a significant amount of time. Here’s the full statement from the Celtics:

There is not word as of yet exactly what the injury is, but based on the fact that it was non-contact, and Tatum was wheeled to the locker room holding the back of his ankle, there is a belief that it is something to do with his Achilles tendon. After the game, notable Celtics fan Bill Simmons reacted on his live podcast.

The defending NBA champion Boston Celtics are on the brink of elimination after losing Game 4 to the New York Knicks at Madison Square Garden.