Jalen Brunson made two free throws with 12.7 seconds to play, lifting the New York Knicks to a 91-90 win over the host Boston Celtics on Wednesday and a 2-0 lead in their Eastern Conference semifinal series.

Boston had a chance to recover in the final seconds, but Mikal Bridges knocked the ball away from Jayson Tatum and New York took possession.

Josh Hart had a game-high 23 points for New York, which trailed by 20 points in the third quarter and by 16 in the fourth. The Knicks received 21 points and 17 rebounds from Karl-Anthony Towns.

Bridges put up 14 points — all in the fourth quarter. Brunson finished with 17 points and a game-high seven assists.

Derrick White and Jaylen Brown each scored 20 points for the Celtics.

Game 3 of the best-of-seven series will be played Saturday in New York.

New York took its first lead on a Brunson layup that made it 87-86 with 1:59 to play. Another Brunson layup capped a 21-2 run that stretched New York’s lead to three points before two Tatum free throws pulled the Celtics within one point with 44.9 seconds left.

Boston took a 90-89 lead on a Tatum dunk with 18.5 seconds to go, but Brunson knocked down two free throws on the ensuing possession.

Tatum, who averaged 26.8 points per game during the regular season, was held to 13 points, but he grabbed 14 rebounds.

Boston also received eight points off the bench from Kristaps Porzingis, who didn’t play in the second half of Game 1 because of an illness. Porzingis played 14 minutes in Game 2.

The Celtics played without Sam Hauser, who sustained an ankle injury in the third quarter of Game 1.

Boston led 24-13 after one quarter on Wednesday and 50-41 at halftime. The Celtics were up by 16 before the Knicks finished the second quarter on an 11-4 run. Tatum was held to two points in the first half.

The Celtics extended their lead to 70-50 on a Porzingis dunk with 4:05 remaining in the third, but New York scored the final eight points in the quarter to cut Boston’s lead to 73-61 entering the final frame.