Carmelo Anthony trade talks heat up

The Denver Nuggets are having serious discussions about a four-way trade that would land Carmelo Anthony with the New Jersey Nets, according to sources with knowledge of the negotiations.

The proposed deal, sources said, also would involve the Utah Jazz and the Charlotte Bobcats. It would deliver Nets rookie forward Derrick Favors, Jazz veteran Andrei Kirilenko and multiple first-round picks to Denver in exchange for their franchise player, potentially bringing a resolution to Anthony's uncertain future before the Nuggets hold their first practice of the new season.

Sources told ESPN.com that the deal, which has yet to be finalized, also would send former All-Star point guard Devin Harris to Charlotte, with Bobcats forward Boris Diaw moving to Utah.

The four teams, said one source close to the talks, are "seriously engaged" after extensive talks Thursday.

However, one obstacle is Anthony's willingness to sign a contract extension with the Nets. A source told ESPN.com that the Nets will not go through with the trade -- even if Denver is ready to pull the trigger -- unless Anthony commits to signing a contract extension, as Kevin Garnett did as part of the mega-trade that sent him from Minnesota to Boston in July 2007.