The New York Knicks went up 3-1 on the defending Champion Boston Celtics thanks to another brilliant second half performance from Jalen Brunson.

Karl-Anthony Towns delivered a 21-point, 11-rebound double-double to help the New York Knicks to a 121-113 win over the Boston Celtics in Game 4 of their second-round series on Monday night. With the victory, the Knicks now hold a commanding 3-1 lead over the defending NBA champions.

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.

All four rounds of the NBA playoffs are best-of-seven, and teams are not reseeded after each round. The team with the better regular-season record in each series will have home-court advantage for that series. All series are played in a 2-2-1-1-1 format, with the team with the better record hosting Games 1, 2, 5 and 7 (if necessary).

The Celtics go up by 20 in the third quarter, the Knicks chip away and take a late lead, Mikal Bridges makes a defensive stop to seal the win, the Knicks celebrate on Boston's home court, and Knicks fans celebrate in the streets of Manhattan.

Actor Timothee Chalamet stole the spotlight Monday night during Game 4 of the NBA Eastern Conference Semifinals between the New York Knicks and the Boston Celtics. Sitting courtside at Madison Square Garden with girlfriend Kylie Jenner,