According to David Aldridge of NBA.com, former Celtics forward Leon Powe – who was bought out of his contract by the Cavaliers last week, thus becoming a free agent — has signed with the Memphis Grizzlies. While the Celtics had reportedly considered the possibility of a return engagement for Powe — who played in just 14 games for Cleveland this year, averaging 5.0 points and 2.7 boards in 13 minutes a night — their acquisition of Troy Murphy took them out of the market for the 27-year-old. That, in turn, led Powe to Memphis.