The Boston Celtics signed guard Stephon Marbury.

The L.A. Clippers waived guard Jason Hart.

The San Antonio Spurs signed forward Pops Mensah-Bonsu to a 10-day contract.

The Boston Celtic signed forward Mikki Moore.

The Milwaukee Bucks signed guard Eddie Gill to a second 10-day contract.

The Chicago Bulls traded guard Thabo Sefolosha to Oklahoma City for a conditional draft pick in 2009.

The Minnesota Timberwolves acquired forward/center Shelden Williams and guard Bobby Brown from the Sacramento Kings for center Calvin Booth and guard Rashad McCants.

The New York Knicks acquired guard Larry Hughes from the Chicago Bulls for guard Anthony Roberson and forwards Jerome James and Tim Thomas; acquired forward Chris Wilcox from Oklahoma City for forward Malik Rose.

The Orlando Magic acquired guard Rafer Alston from the Houston Rockets for forward Brian Cook.

The Sacramento Kings acquired guard Will Solomon from the Toronto Raptors for cash.

The Oklahoma City Thunder acquired forward Malik Rose and cash considerations from the New York Knicks for forward Chris Wilcox.

The Toronto Raptors acquired center Patrick O'Bryant from the Boston Celtics for a conditional second round pick in 2014.

The Memphis Grizzles acquired forwards Adonal Foyle, Mike Wilks and first round pick in 2009 from Orlando for guard Kyle Lowry.

The Memphis Grizzles acquired center Chris Mihm from the L.A. Lakers for a conditional second-round pick in 2013.

The Charlotte Bobcats signed forward Cartier Martin for the remainder of the season.

The Sacramento Kings acquired guard Sam Cassell from the Boston Celtics for cash considerations and a future conditional second round draft pick.

The L.A. Clippers acquired guard Alex Acker and a second-round draft selection in 2011 from the Detroit Pistons for a conditional second-round selection in 2013; waived center Cheikh Samb.

The Toronto Raptors acquired forward Shawn Marion, guard Marcus Banks and cash from the Miami Heat for forward-center Jermaine O'Neal, forward Jamario Moon and a conditional draft pick.

The Milwaukee Bucks signed Eddie Gill from Colorado of the D-League.

The Charlotte Bobcats acquired forward Vladimir Radmanovic from the Charlotte Bobcats for forward Adam Morrison and guard Shannon Brown.

The Orlando Magic acquired guard Tyronn Lue from the Milwaukee Bucks for guard-forward Keith Bogans and cash considerations.

The Cleveland Cavaliers signed guard Trey Johnson to a 10-day contract.