Heat edge Celtics in OT

The outstanding Rondo, who added 10 assists and eight rebounds, was on court for the entire 53 minutes of a hugely entertaining encounter but was left to fight without Paul Pierce (21 points) in overtime after he fouled out in the fourth.

Rondo's range of skills - his pinpoint shooting, light-footed dribbling, vision and fitness - were all on display and he scored all 12 of his team's points in overtime but remained unmoved by his outstanding statistics.

"It's irrelevant. We lost. It's as simple as that," a dejected Rondo said.

Celtics head coach Doc Rivers, however, knew that he had seen something special from his point guard.

"He was absolutely phenomenal and put the whole team on his shoulders at times.

"It's tough to have him play that way and not win the game, honestly, because he basically did everything right".

Miami had to dig deep to muster an impressive third-quarter comeback to haul themselves back into the contest after trailing by as many as 15 points during the second quarter and went into the halftime interval 53-46 down.

By the end of the third, however, Miami had moved 81-75 ahead, having outscored the Celtics by 13 points in the quarter, Dwyane Wade finally breaking free of close attention with 12 points, after managing only two in the first half.

The crowd were on their feet throughout the fourth quarter sensing victory but there were a few more twists and turns before Miami had the win in the bag.

Miami led by three points with 34.3 seconds left on the clock but they allowed Ray Allen space for a three-pointer which he sank with characteristic aplomb and then LeBron James (34 points) missed a jump shot in the final second of regulation to leave with the scores level at 99-99.

With two minutes of the extra period remaining, Rondo drained a three-pointer, reduced to two on review, to put Boston ahead but baskets from James, Udonis Haslem and Wade carried Miami to victory.

Boston were angered that no foul was called with the score tied at 105-105 when Rondo went for a lay-up but missed as he was struck in the face by Wade.

"We all thought he got it, I'll say it," Allen said. "He did, but what can you do about it?"

The win is the 10th time in franchise history that Miami have taken a 2-0 series lead and ominously for Boston, the Heat they have gone on to win in each occasion.

A road win would have really opened up the series, ahead of two games in Boston, but Wade said he did not expect the Celtics to be demoralised by the cruel loss.

"I think if it is another team, possibly, but not them. They are not as great as they are individually and as a team without being resilient, without overcoming," he said.

Rivers said his team's spirit had been outstanding and promised his team would be prepared for Game Three in Boston on Friday.

"Listen, we played terrific, I told the team 'we played extremely hard'. I thought we played with great heart but I don't think we played smart all the time.

"There are things we can absolutely fix and we'll do that. We'll be ready for Friday."