"If Kevin Walter's MRI on Monday shows a serious injury to his collarbone, the Texans will have to add another receiver to the roster.

Depending on the severity of the injury -- like a broken collarbone -- Walter could be out from four to eight weeks.

There are national media reports that Walter could be out from eight to 10 weeks.

"I'm concerned," Walter said after the game. "I'm going to treat the heck out of it and be ready to roll as soon as possibe. I've never had anything like this before (so), there's always concern."