Brooklyn Nets head coach Steve Nash hailed Kyrie Irving's gritty display as the injury-hit NBA title hopefuls topped the Boston Celtics without superstar duo James Harden and Kevin Durant.

With Harden (hamstring) and Durant (thigh) sidelined, Irving helped the Nets move top of the Eastern Conference by defeating the Boston Celtics 109-104 on Friday.

Despite a poor shooting performance against his former team, Irving fell just short of a triple-double after posting 15 points on four-of-19 from the field while missing all six three-pointers, 11 assists, nine rebounds and four steals.

Nash, though, praised Irving after the Nets (40-20) replaced rivals the Philadelphia 76ers (39-20) atop the east.

"Ky had some steals, assists," said Nash. "It was not his typical scoring night, but it's few and far between when he doesn't score the ball at a prolific rate.

"But he definitely disrupted the basketball game defensively, and overall, he draws a lot of attention. I thought he was great in a lot of different ways than we're accustomed to and I thought his team-mates really picked him up as well."

"As a competitor I was just trying to go out there and do the little things, the small details, picking guys up or just being in the right position," added Irving. "When you don't have your legs on the offensive end, I felt like I was getting to where I wanted to go.

"A few angles, right, left, short, this that, just continuing to play, just continuing to have that mentality, next play, and I can have an impact with my team-mates on both ends of the floor, just making the right play. It's a simple game when you've got team-mates that are out there that are in the right spots and they're fulfilling their roles too."

Joe Harris top-scored for the Nets with 20 points, while Jeff Green (19), Bruce Brown (15) and Blake Griffin (13) made solid contributions for battling Brooklyn.

"I think that's why we're in the position we're in because we've had, I think, 33 different starting line-ups and we've had different rotations and different combinations on the floor and guys have had to buy into the way we want to play and play for one another," said Nash.

"So every night, it's got to be someone else who steps up and has opportunities but also fits in with what we want to do. I think that speaks for the spirit of the group and the willingness to try to pick each other up and not worry about themselves but to worry about the group.

"That's been fantastic, so it was a good performance. I thought [DeAndre Jordan] was great, I thought Bruce [Brown], although he was in foul trouble, did a lot of great things for us as usual. Right down the line, guys made plays for us."

Former MVP Durant missed his third consecutive game due to a thigh contusion and pre-game, Nash told reporters: "I think he's close. But I don't think he's there.

"I think we'll see tomorrow [Saturday] and Sunday if that's a possibility, but it may not [be]. So it may bleed back into this road trip. I wish I could give you more. That's kind of all I know is that it's close but it's not quite there."