Portland president Steve Patterson confirmed to SportsLine.com Tuesday that the Blazers and the Nets are negotiating a deal which would send G Jason Kidd to Portland and F Shareef Abdur-Raheem in the opposite direction.

A different source reports that the Blazers have already began seeking a medical opinion on the knee fracture for which Kidd was operated on during the summer and which figures to have him out until December.

The surgery was successful, and Kidd has made it clear he would like to leave the Nets, who were sold to Bruce Ratner in the spring and have essentially purged their roster since then. Likewise, Abdur-Raheem is said to have seeked a trade, dissatisfied with playing behind Zach Randolph on the depth charts.

Shareef's $14.6 million contract will expire following the upcoming season, while Kidd signed a six year deal worth over $100 just last summer.