Seattle Sonics have added four players to their roster in Randy Livingston, Pervis Ellison, David Wingate and James Robinson. Livingston logged time last year as Jason Kidd's backup in Phoenix while Ellison, a former No. 1 pick, was with the Celtics. Robinson comes over from a stint in Greece while Wingate last played for the Knicks. http://www.sportstalk.com/nba/news/index.shtml