The Boston Celtics lost a pivotal Game 4 to the New York Knicks on Monday night to fall into a 3-1 series hole. Even worse, they may have lost their superstar for an extended period. Jayson Tatum went down with an apparent right ankle injury during the fourth quarter of Game 4 at Madison Square Garden.

Instead, they lost the game, and their best player, Jayson Tatum, left the game in the fourth quarter with an apparent leg injury that is expected to knock him out for the rest of the series.

Jalen Brunson had 39 points and 12 assists, and the New York Knicks moved a win away from their first Eastern Conference finals appearance in 25 years and pushed the defending champion Boston Celtics to the brink of elimination with a 121-113 victory Monday night in Game 4.