Boston. Derrick White scored 24 points, including six 3-pointers, and the Boston Celtics beat the Miami Heat 110-97 in Game 5 of the Eastern Conference finals on Thursday to begin a sixth challenge.

Marcus Smart had 23 points and five steals. Jayson Tatum and Jaylen Brown each scored 21 points as the Celtics won their second straight and cut Miami’s lead to 3-2.

It bolstered Boston’s hopes of becoming the first team in NBA history to overcome a 3-0 deficit to win a series. Teams that previously held that position are 0-150 in league history.

Game 6 is Saturday in Miami.

A day after the Florida Panthers earned the franchise’s first trip to the Stanley Cup Finals since 1996, Boston dropped the Heat for the second straight game in the NBA Finals.

Duncan Robinson led the Heat with 18 points. Bam Adebayo added 16 points and eight rebounds. Jimmy Butler had 14 points, five rebounds and five assists, but sat out the final 9:47 of the game. Caleb Martin scored 14 points.

It was Butler’s lowest scoring game of the season. He scored 16 points in Game 3 to lead Miami to a blowout victory.

Miami never led and had 16 turnovers.

Boston entered the game 4-5 at TD Garden this postseason. But with a raucous home crowd, the Celtics thrived on their energy.

They fumbled, outplayed Miami and found themselves in layups and dunks in transition they soared to 20 points in the first half.

The Heat woke up, but Boston continued to make three-pointers and extended its lead to 96-72 in the fourth quarter.

Miami started with Kyle Lowry as a point guard after Gabe Vincent He was ruled out with a sprained left ankle yesterday. It was Lowry’s first start since Feb. 2.

Vincent, the Heat’s third-leading scorer this season, was injured late in the Game 4 loss when he landed awkwardly trying to save a shot near the Heat bench.

His presence was sorely missed as Miami struggled early on offense, surrounded by a Celtics defense that forced the Heat into 10 turnovers in the first half that led to 17 Boston points.

Lowry played 31 minutes, scored five points and finished with four turnovers.