The swelling in Andrew Bynum's knees has gone down, agent David Lee said.

Although Bynum has yet to play for the Phiadelphia 76ers this season due to bone bruises in both knees and weakened cartilage, the center will have his knees re-examined on Dec. 20.

Lee added Bynum will have a battery of tests conducted later this month.

The 76ers recently ruled Bynum out indefinitely, admitting they are not sure whether he will play at all this season.