The Knicks and Clippers have been discussing a deal centered around sending Iman Shumpert and Raymond Felton to Los Angeles in exchange for Darren Collison and Reggie Bullock, sources confirm. In order to make the deal work financially, other players may have to be involved. One name that has been discussed is Clippers small forward Jared Dudley. Talks at this point are not in advanced stages, with one source describing the deal as "a possibility." The teams have been talking since Friday. A source with knowledge of the talks told ESPN that the Clippers have been reluctant to part with Bullock, their first round draft pick from last year, who is being asked to play a larger role with starting guard J.J. Redick being lost indefinitely to a back injury. Adding Shumpert would help somewhat as he would slide into Redick's starting role and allow Sixth Man of the Year candidate Jamal Crawford to go back to his reserve role. Felton's inclusion in the deal would mitigate the loss of Collison as the primary backup to Chris Paul and allow the Clippers to include players like Matt Barnes or Dudley in deals that would return a big man to back up Blake Griffin and DeAndre Jordan, a source said. The Knicks have made a push in recent days to upgrade at point guard with Felton playing below expectations. In addition to Collison, they have expressed interest in Toronto's Kyle Lowry and Atlanta's Jeff Teague.