The Celtics are on the verge of falling behind 3-1 in the series. (The Knicks lead 113-104 with three minutes remaining), but the Celtics also could be losing their star player. Jayson Tatum went down with a lower right leg injury. He was helped off the court and is Boston's locker room.

Led by Jalen Brunson's 39 points, the New York Knicks took down the Boston Celtics by the final score of 121-113 in Game 4 of their second-round playoff series on Monday night.

Celtics forward Jayson Tatum was amid one of his best career playoff games before suffering what looked to be a non-contact lower leg injury late in the fourth quarter. Helped off the floor with 42 points, eight assists, four rebounds and four steals, Tatum could not put any weight on his injured right leg.