Mazzulla, Brown and Horford all said that Boston didn't play up to its standard defensively. This is true, particularly in the second half. But both sides of the floor are connected, and Mazzulla pointed out that the Knicks were able to play with pace in part because of the Celtics' poor offensive execution.

Jalen Brunson led the way for the Knicks once again, ending with 39 points, 12 assists and five rebounds while shooting 14-for-25 from the field. Knicks forward Mikal Bridges also had a great game, finishing with 23 points, seven rebounds, three assists and four steals in the win.

The Boston Celtics blew a 20-point lead and lost Game 1 of the Eastern Conference Semifinals to Jalen Brunson and the Knicks.