Jaylen Brown scored 37 points as the Boston Celtics unleashed a dominant offensive performance to blow past the Phoenix Suns 127-112 on Thursday.

Boston's big three of Brown, Jayson Tatum and Al Horford combined for 87 points in a dazzling performance against a Suns team looking to avenge last Saturday's 117-107 home defeat to the Celtics in Arizona.

Tatum finished with 26 points while Horford weighed in with 24 points to secure a victory that edges Boston closer to securing the NBA Eastern Conference's top seeding in the postseason.

The Celtics rained down a barrage of three-pointers on the Suns, converting 25-of-50 attempts from outside the arc. The Suns by contrast shot just 11-of-31 from three-point range.

Devin Booker led the Suns scorers with 23 points, with Bradley Beal making 22 and Kevin Durant and Grayson Allen finishing with 20 apiece.

Boston improved to 52-14 with the victory, and are 9.5 games clear of second placed Milwaukee [43-24] at the top of the Eastern Conference.

Phoenix meanwhile fell to 38-28 and are eighth in the Western Conference, outside the top six automatic playoff places.

In other games on Thursday, the Milwaukee Bucks produced a fourth quarter rally to defeat the Philadelphia 76ers 114-105.

The Sixers, still without injured NBA Most Valuable Player Joel Embiid, led by 10 early in the third quarter but were gradually reeled in by the home side.

Elsewhere Thursday, the Los Angeles Clippers closed the gap on Western Conference leaders Denver with a comfortable 126-111 road win over the Chicago Bulls.

Chicago led briefly early in the first quarter but the Clippers took over and led for the remainder of the game, opening up a 21-point advantage towards the end of the fourth quarter.

The Clippers improved to 42-23 with the victory to remain fourth in the West, 3.5 wins behind leaders Denver [46-20]. (AFP)