Status of Pro Bowl RB Jamaal Charles up in air after he hurts foot slipping down hillside

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The status of Pro Bowl running back Jamaal Charles remains in question after he missed Sunday night's preseason game in Carolina because of a bruised foot.

Charles had made it through every training camp practice without picking up any significant bumps or bruises. Then, when he was in the process of moving out of the Missouri Western dorms on Thursday night, he rolled his foot over a curb.

The Chiefs had no media availability on Friday or Saturday, so the injury was not revealed until Sunday, when Charles was not on the trip to Carolina.

Coach Andy Reid said Monday that Charles had X-rays and an MRI exam that revealed no significant injury. Still, it is unclear how long Charles will be out.