O.C. Register: Lakers coach Phil Jackson was unable to provide a concise update on injured center Andrew Bynum’s condition because Bynum did not show up for Wednesday’s practice.

Although Jackson said is it was possible that Bynum did not know that the players were required to be at the practice facility by 11 a.m., Jackson added that Bynum could have called and found out the time but apparently he did not. Jackson said the situation would be dealt with.

Lakers spokesman John Black said that for several days now Bynum has been involved in a rehabilitation program that includes riding on the stationary bike and using the Precor machine.

Bynum has been out since Jan. 29, because of a torn medial collateral ligament of the right knee. The prognosis when his injury occurred was that Bynum would miss 8-12 weeks.