The Bulls and Raptors engaged in trade talks centered on Carlos Boozer and Andrea Bargnani over a week ago, according to two league sources.

ESPN.com’s Marc Stein first reported the talks, which a source told the Tribune were initiated by the Bulls and initially dismissed because of the Raptors’ desire to land the Lakers’ Pau Gasol. Though talks are not currently active, a source said the Raptors know the trade is available and could expand to include Nate Robinson and John Lucas III. Another source suggested it’s unlikely the Raptors would take on Boozer’s contract, which has $9.1 million more than Bargnani’s over the next two seasons.

via K.C. Johnson of the Chicago Tribune