Bam Adebayo scored 31 points to lead the Miami Heat to a 109-103 victory over the Boston Celtics in the Eastern Conference play-off final.
Adebayo also had 10 rebounds, 6 assists, and 4 steals for his team.
The Celtics, who were 26 points behind at one point, closed to within a point late in the game, 93-92, but the Heat held on for a road victory.
“I had to pick up my weight. These last couple games, my team was depending on me and I didn’t show up,” said Adebayo.
“I took it upon myself to lock in and get the win.”
Adebayo led his team in scoring, and his star performance was critical for the Heat, who were without the influential Jimmy Butler for the second half due to knee inflammation.
“He’s a winning player,” Heat coach Erik Spoelstra said of Adebayo. “He really is the heart and soul of our group. You can count on him all the time.
“He doesn’t get caught up in all the noise. He’s just out there competing and playing winning basketball, doing it on both ends.”
The Celtics had 23 turnovers, which led to 33 points for the Heat, who had only eight.
The home team’s star player, Jayson Tatum, only managed 10 points, with Jaylen Brown leading the way with 40.
“Unacceptable. I’ve got to play better,” said Tatum. “I feel like I left the guys hanging tonight. That’s on me.”
Boston coach Ime Udoka added, “We didn’t match [their physicality] from the start.
“We got into complaining and let it take us out of our game. It’s disappointing to come out that flat in a conference finals game.”
The fourth game of the best-of-seven series will be played on Monday (01:30 BST Tuesday) in Boston.
The Golden State Warriors lead the Western Conference finals series 2-0 over the Dallas Mavericks, who play the third game of the series on Sunday (02:00 BST Monday).