Los Angeles Lakers center Andrew Bynum hurt his left knee (not his ankle) Sunday night in the third quarter of a game against the Memphis Grizzlies.

Bynum had gone up for a rebound, and there was some sort of contact with Lamar Odom. Bynum’s left knee turned in awkward fashion. Teammates had to help him reach the locker room.

It isn’t known how seriously Bynum is hurt. Let’s hope he turns out OK. He’s been a terrific story this season and a key to Lakers success.

11:33 p.m. ET update: Unofficial, unconfirmed word is that an X-ray was negative, meaning there’s no broken bone, but his MRI will be tomorrow. When there’s an official word we’ll update this blog entry.

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