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

The Celtics entered the game as a favorite but a bad shooting night doomed them. The team went a putrid 15-of-60 from beyond the arc, with stars Jayson Tatum and Jaylen Brown combining to go 14-of-43.

The New York Knicks will never forget their first ... win over the Boston Celtics this season. More clutch antics from Jalen Brunson provided the necessary push to finally get through the Boston barrier: the Knicks erased a 20-point deficit to earn a 108-105 overtime triumph over the defending champion Celtics in the opening game of the regional rivals' Eastern Conference semifinal set.