After trading away Patrick O’Bryant  in a three-team deal involving the Sacramento Kings  and Toronto Raptors , the Celtics  have made a move within their own organization. On Thursday the Celtics recalled rookie J.R. Giddens from the NBA Development League’s Utah Flash. Giddens was first called up in January and was later re-assigned on February 5. He was averaging 17.0 points and 3.0 during his most recent stint with the Flash. Giddens has appeared in a total of 15 games for the Flash this season and averaged 17.6 points and 5.7 rebounds. He has yet to play in a regular season game for the Celtics.