(Still) waiting for a Bynum update

NEW YORK — Andrew Bynum underwent an MRI exam here today, but the results weren’t immediately known. Bynum’s orthopedist, Dr. David Altchek, is expected to study the exam before he and the Lakers determine the severity of Bynum’s right knee injury and offer a prognosis on his recovery. An announcement is expected Monday.

Bynum suffered a sprained right knee midway through the first quarter of the Lakers’ victory Saturday over the Memphis Grizzlies. He had to be helped from the court, but he said after the game that he could put weight on his leg and walk without the aid of a crutch. Bynum’s injury happened a little more than a year after he suffered a season-ending left kneecap injury. Altchek performed surgery last May.

In other news, Lakers coach Phil Jackson took the day off and neither Derek Fisher nor Pau Gasol practiced at a local sports club. Kobe Bryant also had the option of sitting out, but practiced anyway. Those three logged 30-plus minutes in Saturday’s win over Memphis. The Lakers face the New York Knicks on Monday night.