The 27-year-old Tatum tore his right Achilles tendon on Monday night against the New York Knicks when he lunged toward a loose ball and his leg gave out. He buried his face in a towel in obvious pain while grabbing at his leg above the ankle after the non-contact injury.

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.