James Harden insisted the best is yet to come for the Brooklyn Nets and their 'Big Three' as the former NBA MVP familiarises himself with fellow superstars Kevin Durant and Kyrie Irving.

The Nets have emerged as serious championship contenders after acquiring Harden in a blockbuster trade from the Houston Rockets earlier in January, teaming him up with Durant and Irving.

There have been teething problems – Harden, Durant and Irving are all dominant ball-handlers – but the Nets completed a sweep of the Miami Heat thanks to Monday's 98-85 win.

Harden posted 20 points and eight assists, Durant had 20 points and 13 rebounds, while Irving put up 16 points of his own at Barclays Center.

Asked about figuring out his role with the Nets, having only spent a matter of weeks in Brooklyn, eight-time All-Star Harden said: "I was in I was in a role for eight years, controlling the ball, dominating the ball. Now it's a different experience for me, but it's still great.

"It's still basketball at the end of the day. And I'm lucky to be able to do more than just one thing on the basketball court. So, it's fun. Like I said before it's a game within the game, you got to pick and choose when to be aggressive, when it gets your shooters going, when to let KD and Kyrie get going.

"Once we get a rhythm and flow and we kind of start to feel each other out more, it'll be a lot easier for us, and our team will have a lot more flow throughout the course of the game.

"Right now we're trying to find it, and we show a really good glimpses of it, but it'll be more consistent."

Two-time NBA Finals MVP Durant – also a league MVP – stayed hot as the Nets took down the Heat again.

Durant registered his 14th consecutive double-double, becoming the fourth player in league history to do so alongside Wilt Chamberlain, Adrian Dantley and Dominique Wilkins.

On former Oklahoma City Thunder team-mate Harden, Durant added: "Feels like he just transferred to a new school and he's trying to figure out the curriculum.

"And it's going to take some time to figure out who your teammates are, what your rotations are in the game, when to be aggressive, when to score, pass.

"As a scorer and the focal point of your offense, sometimes the balance between score and pass -- you got to figure that out each night."

Brooklyn's first-year head coach Steve Nash said of Harden: "Would I like James to be more aggressive? Yes. Will he be more aggressive in time? I think so.

"I think once he gets more comfortable with his team-mates, when he gets in better shape, when he's adapted to this whole new environment, we'll see an improved James scoring the ball."