Bam Adebayo led a fourth-quarter fightback as the Miami Heat shrugged off an injury to Jimmy Butler to edge past the pace-setting Boston Celtics 98-95 on Tuesday.

Miami were rocked by the withdrawal of Butler shortly before tip-off in Florida as they prepared to face the Eastern Conference leaders and most bookmakers' favorites for this year's NBA crown.

But Adebayo stepped up with a 30-point performance as Miami sent Boston spinning to a second straight loss following Monday's reverse to Orlando.

Adebayo's haul included a crucial contribution down the stretch as Miami overturned a 10-point deficit with just over eight minutes remaining to close out a hard-fought victory.

The Celtics looked set for morale-boosting road win as they opened up an 87-77 lead midway through the fourth quarter.

But back-to-back three-pointers from Haywood Highsmith got Miami to within four points.

Adebayo then delivered a hook shot and a dunk in quick succession to make it 87-87 and then scored the go-ahead basket to give Miami a lead they would not relinquish as they closed out the win.

"Everybody has to take a bigger responsibility, everybody's got more added to their plate," Adebayo said afterward.

"This team is built for that. We've had guys in and out of the rotation, injured or not. Just having that willingness to win, that's all I can ask for from my team-mates."

Adebayo's performance was the sort of display that could put him into All-Star Game contention as the NBA's mid-season break looms.

The towering Miami center however played down speculation that he could earn a second All-Star call-up after his lone appearance in 2020.