As Brooklyn Nets star Kevin Durant‘s trade request approaches a fourth week, the Boston Celtics have emerged among teams engaged in talks on a possible deal, sources told ESPN.

The Celtics appear no closer to acquiring Durant than others in discussions with the Nets, but Boston’s ability to include All-Star forward Jaylen Brown as a centerpiece in offers does help make the team formidable in its pursuit, sources said.

The Miami HeatPhoenix Suns and Toronto Raptors have been well-known to have varying degrees of interest in Durant, but the Celtics have also been in regular contact with the Nets, sources said.

There are no deals believed to have traction for Durant, and no team has yet to reach the significant threshold that the Nets have set to trade one of the league’s most talented players, sources said. The Nets’ posture on a potential trade has been largely unchanged: They want a massive return that potentially includes multiple unprotected first-round picks, pick swaps and impactful players for Durant, sources said.

The Celtics consider All-NBA forward Jayson Tatum off limits in any trade talks, but Boston is able to construct a package for Durant that could include Brown and as many as three unprotected first-round picks (2025, 2027 and 2029) — and two pick swaps (2024 and 2026). Brown, 25, has two years and $56 million left on his current contract.