Tatum had a non-contact leg injury and had to be helped off the court, it looked serious and changes everything for Boston.

Celtics star Jayson Tatum appeared to suffer a serious ankle/leg injury during Boston's Game 4 loss to the Knicks on Monday.

Can the Knicks take a 3-1 series lead or will the Celtics pull even on the road? Here's how to watch this pivotal Game 4.

For Boston fans, if Tatum's injury is as bad as it looks, awful isn't emphatic enough of a descriptor for this loss.

NEW YORK — Celtics star Jayson Tatum had to leave late in their Game 4 loss to the Knicks with an apparent right leg injury.

The Celtics blew a 14-point lead, then lost their best player to injury in a Game 4 loss to the Knicks that pushed Boston to ...

Veteran NBA analyst and insider Brian Windhorst shares inside information from the Boston Celtics locker room after losing to ...

The St. Louis native went down late in the game with a non-contact injury that had him writing on the ground in pain.

Boston Celtics superstar forward makes franchise history before leaving Game 4 in loss against the New York Knicks.

The Boston Celtics lost Game 4 and saw Jayson Tatum suffer a potentially serious injury on Monday night against the New York ...

• WATCH NOW: Knicks vs Celtics Game 4 live for free with Fubo, (free trial), or with DirecTV Stream (free trial). When: ...

The Celtics will lose Tatum's prolific production of 25.0 points, 11.8 rebounds and 5.5 assists per game in their semifinals ...