AP

Boston Celtics guard Terry Rozier soars toward the basket past Cleveland Cavaliers forward LeBron James.

The Celtics punched the Cavaliers first and never looked back in rolling to a game one rout.

LeBron James took a literal shot to the jaw in game two of the NBA Eastern Conference finals but kept right on scoring.

So did the Celtics on their home court.

AP

Brad Stevens' masterful coaching is a game changer for the Celtics.

Jaylen Brown scored 23 points and Boston withstood a 42-point night by James to beat Cleveland 107-94 on Tuesday (Wednesday NZT) and take a 2-0 lead in the series.

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Terry Rozier added 18 points, while Al Horford finished with 15 points and 10 rebounds.

Boston improved to 9-0 this post-season at TD Garden. The Celtics have never blown a 2-0 series lead in the playoffs.

"We're going to fight," Rozier said. "At this point we don't care if we win by half a point. If we win, that's all that matters."

James added 12 assists and 10 rebounds. He scored 21 of Cleveland's 27 points in the first quarter, tying his playoff career high for points in a period. His 42 points marked his fifth 40-point game of this post-season. James had just 15 points and missed all five of his three-point attempts in the Cavs' game one loss.

AP

LeBron James blocks Jaylen Brown of the Celtics.

But he didn't seem to play with the same force after straining his neck in a first-half collision and the Cavaliers wilted in the second half, with the Celtics outscoring them 59-39.

"I think I'll be fine. I'm not going to lose sleep over it. You go out and when you lay everything on the line, at the end of the day, you can live with that," he said. "They did what they had to do, and that was protect home, and now it's our time to try to do that, as well."

Kevin Love finished with 22 points and 15 rebounds for Cleveland.

Tristan Thompson started in place of Kyle Korver in the hopes his presence could energise what was a sluggish Cavs offence. Thompson got Cleveland's first basket of the night and helped to limit Horford's effectiveness on the inside early on.

Korver added 11 points off the bench for Cleveland. But starters Thompson, JR Smith and George Hill combined for just 11 points on 5-of-17 shooting.

Tempers flared with 3:49 to play with Boston leading 97-89. Marcus Morris got in Smith's face after Smith pushed Horford in the back to prevent a layup. Smith shoved Morris and the pair had to be separated.

Smith was assessed a flagrant foul and both received technical fouls.

"I felt like it was uncalled for that type of play there," Horford said. "We have each other's backs. ... We moved on to the next play way and we locked in after that."

Smith said there was no malicious intent on the play.

"I blatantly pushed him. It wasn't like I was trying to low bridge him or something. Just make sure he didn't get it," Smith said. "It was a good, hard foul."

Boston's balanced attack was effective again, with six players reaching double figures. Cleveland had 15 turnovers leading to 13 Boston points. The Celtics turned it over just six times.

Game three is on Saturday (Sunday NZT) in Cleveland.

 - AP