Carmelo Anthony is open to signing an extension with the Mavericks, according to a source.

Dallas has a roster already capable of winning a title, but they have a need at small forward.

"The only way Melo doesn't come to New York is if [Mark] Cuban makes a play," that source said.

Roddy Beaubois is the main player of interest Dallas could use in a major trade, but he is close to untouchable.

A source with knowledge of the Mavericks' thinking said he'd "be shocked if [Carmelo] came" to Dallas, but did say Cuban is unpredictable.