It's been nothing but bad news since the arrival of Andrew Bynum in Philadelphia.

Before Saturday night's game against Oklahoma City, Sixers general manger Tony DiLeo announced Bynum would be 'out indefinitely.'

"Bottom line is Andrew is out indefinitely," DiLeo told reporters.

"There are no timelines, we just have to wait and see how he reacts."

The news comes just two weeks after the Sixers hoped Bynum would be declared healthy enough to resume basketball related activities on Dec. 10.

Those hopes were dashed a week later when Bynum injured his left knee--the other one while bowling.

That gave Bynum bone bruises in both knees and has also weakened cartilage.

"(The bowling injury) is an unfortunate situation, when the cartilage is in a weakened state anything can happen, DiLeo said.

DiLeo also admitted that the team has changed their attitude towards Bynum and his acquisition as his knees have worsened since his arrival in August.

"His knees now and the MRIs are not the same, it's a different type situation," DiLeo said. "At the time of the trade we had four doctors look at his MRI; we knew it was a calculated risk. We took that risk," DiLeo told reporters according to ESPN.

Bynum is in the final year of his contract paying him $16.5 million. The center was acquired in a 4-team blockbuster trade that sent Magic center Dwight Howard to the Lakers.

Brian Windhorst, contributed to this report


--Pete Giordano