If it was thought to be serious, he'd probably be in a hard cast I'd think...and we'd probably already know about it. Nothing at all about him out there in the twittersphere that I can see...
You can have a really jacked up knee sprain and be in a mobilizer.
I absolutely destroyed my knee to the point where it wasn't technically a 'knee' anymore. ACL and all the other CL's completely gone. Wore an immobilizer for the better part of a year - no plaster cast. Even stood the sidelines on crutches with it on.
Can't tell what the injury is one way or the other based solely on what he's got wrapped around his leg. Hopefully something minor.
Its being reported that Malcolm just has a bone bruise and is out for a week. Not supposed to miss much time. Looks like we dodged a bullet