Celtics guard J.R. Giddens has knee surgery

BOSTON (AP) -- The Boston Celtics say guard J.R. Giddens has undergone arthroscopic surgery on his left knee.

The team said the procedure Tuesday was a success but no date has been set for his return.

Giddens has played in 21 games for the Celtics this season. He scored a season-high six points and grabbed seven rebounds against the New Jersey Nets on Jan. 13. He has averaged 18 points and 4.5 rebounds in four games on assignment for the Maine Red Claws of the NBA Development League.