Carmelo Anthony is continuing to push Denver to find a trade that will send him to the Knicks and has stepped back from a willingness to commit to the Nets.  On Saturday, the Knicks were exploring ways to put together a package that might land Anthony.

Over the weekend, Anthony began having doubts about agreeing to a contract extension with the Nets.  Yahoo! Sports reports that the four-team blockbuster that would send Anthony to New Jersey, which seemed to be gaining critical momentum on Friday night, is now at "a perilous crossroads."

Anthony?s desire to make a long-term commitment to the Nets started eroding when former Nets' players related their experiences with an empty arena, the apathy of fans, and the team playing in the shadow of the Knicks and Madison Square Garden.  Anthony was already concerned about joining a team in New Jersey that would not be close to contention even with him on board.

"He?s having second thoughts on Jersey," a league source told Yahoo! Sports. "He?s pushed [Denver] to explore other options."

While the Nuggets still believe the deal with New Jersey gives them their best return, Denver engaged the Knicks on Saturday in discussions centered around Danilo Gallinari, Anthony Randolph and Toney Douglas, according to sources.

Sources indicated that the Knicks are working to pry draft picks to send the Nuggets in a deal for Anthony, and have contacted the Rockets for this purpose.  Before last season's trade deadline, the Knicks sent their 2012 first-round pick to Houston, and agreed to swap picks with the Rockets in 2011, in a move to dump the contract of Jared Jeffries.