The Nuggets are losing their reluctance to trade Carmelo Anthony, according to sources familiar with the thinking of the front office.

The Nuggets still aren't aggressively shopping Anthony and haven't withdrawn their longstanding offer of a contract extension, but numerous sources told ESPN.com that Denver officials have in recent days let other teams know for the first time that they will listen to pitches after previously resisting such discussions.

"I'm not sure how soon, but I do think they're going to trade him [between now and February]," said one rival GM.

Said another source briefed on Denver's plans: "There's no doubt they are working on it. Eventually they're going to pull the trigger."

The Nuggets, during GM Masai Ujiri's first two weeks in the office, consistently told teams calling to register trade interest in Anthony that they weren't ready to discuss the subject.

There is no clear frontrunner at the moment.

The source said that a trade could materialize quickly enough that Anthony "might never wear a Nuggets uniform again."