Stephon Marbury could soon become the newest member of the Celtics.

According to sources, the veteran point guard is very close to a deal with the defending NBA champs. The only holdup was Marbury reaching an agreement with the Knicks on a buyout, which was reportedly done today.

The Celtics would need to add Marbury to their roster by Sunday in order for him to be eligible for the postseason.

As reported in today’s Herald, center Mikki Moore officially joined the Celtics today. The 7-footer agreed to a deal after clearing waivers this morning.

Marc Spears also has a take on it:

The Knicks and Stephon Marbury have reached agreement on a buyout of the guard's contract and could announce the agreement as soon as today, according to an NBA source. After Marbury clears waivers and becomes a free agent, the Celtics are a front-runner to sign him, the source said. With a salary for this season over $20 milllion, Marbury is expected to clear waivers without a problem.

Marbury has expressed interest in joining the Celtics. An NBA source said the Celtics are strongly interested signing the two-time All-Star and will likely offer a contract to him to fill their final vacant roster spot once he becomes a free agent. Boston filled its 14th roster spot by signing forward-center Mikki Moore today.

Celtics president Danny Ainge said today that now with Moore signed, the team was focusing on signing a combo-guard or wing player.