On Tuesday evening, it became official. After Celtics star Jayson Tatum was injured on Monday night in the team's Game 4 loss to the Knicks at Madison Square Garden in ther Eastern Conference semifinals series, there was ample speculation that Tatum had suffered an injury to his Achilles tendon.

MRI revealed the Celtics' worst fear, that their franchise cornerstone ruptured his Achilles in Monday's Game 4 loss.

The Boston Celtics lost Game 4 and saw Jayson Tatum suffer a potentially serious injury on Monday night against the New York Knicks. The Knicks won 121-113 thanks to a strong second half and erased another large deficit,