The Brooklyn Nets will not trade James Harden says head coach Steve Nash.

The 2018 MVP has been the subject of trade speculation as Thursday's deadline approaches but the Nets head coach quashed the talk.

Harden, who joined the Nets from the Houston Rockets in January last year, had turned down a three-year extension in the off-season fueling the rumours.

"Yes, that's correct," Nash told reporters before Sunday's 124-104 loss to the Denver Nuggets, when asked if the Nets do not plan to trade Harden.

He added: "I've talked to James; he wants to be here. He wants to be here long term as well, so I don't think anything's changed other than noise from the outside.

"James wants to be here, we're building with James and we think we have the best chance to win with James.

"I don't think anything's changed on the inside, in our locker room, in our communication, it's just all the noise from the [outside]."

Harden's Nets teammate Kyrie Irving, who scored 27 points with 11 assists against the Nuggets, reiterated Nash's sentiment that the 32-year-old guard was committed to Brooklyn.

"The few conversations that we've had, he's been really committed, and we just hold him to his word, but obviously when we're going out to play games we can't even really think about it," Irving said.

"We would love to have him in the lineup, at his optimum healthy version of himself, and then we'll let the rest take care of it, but who knows? Who knows what's going to happen?"

Harden was absent for the Nuggets defeat with hamstring tightness, which has forced him out of the Nets' past two games, not helping end their eight-game losing skid.

"It's day-to-day," Nash said. "It's a matter of does that strength get back to where we feel confident and he feels confident that we're not risking anything. That's what we're dealing with right now."