Jayson Tatum was writhing in pain after to suffering an apparent lower leg injury late in Game 4 against the Knicks on Monday night.

Tatum attempted to go after a loose ball and seemed to plant his right leg the wrong way, sending him quickly to the ground at Madison Square Garden.

The Celtics star had to be helped off the court and could not put any pressure on his right leg.

The Knicks had been leading the game at the time of the injury.