"We'll just see how he does. Precautionary measures," Reid said Monday, via The Associated Press. "We'll see how he does here in the next little bit -- see where he's at as far as pain or swelling."
We're not in the habit of updating every minor practice injury, but Charles is under a microscope because of his injury history. (Not to mention his place near the top of fantasy drafts across the country.)
NFL.com's Ian Rapoport reported later Monday that Charles is able to walk on his sprained foot but is having trouble pushing off the injury.