The Boston Celtics announced that Jayson Tatum underwent surgery Tuesday to repair a ruptured right Achilles tendon.

No timetable was available for Tatum’s recovery, but he is certainly done for the remainder of Boston’s current playoff run.

Tatum had an MRI earlier in the day following the injury Monday night in Game 4 against the New York Knicks. The Knicks beat the defending champions 121-113 to go up 3-1 in their Eastern Conference semifinal series.

Tatum was hurt when teammate Jaylen Brown fumbled the ball and Tatum made an attempt toward it. He suffered a noncontact injury and was in agony on the court, calling his own timeout with 2:58 remaining and grabbing at his ankle.

He was helped off the floor with his right foot kept above the ground and was later seen being pushed to the locker room on a wheelchair.

Tatum had racked up 42 points, eight rebounds, four assists, four steals and two blocks in the game. He knocked down seven 3-pointers.