Kansas City Chiefs running back Jamal Charles was carted off the field during practice Monday, but coach Andy Reid said X-rays taken on Charles' injured foot were negative.
The team is treating the injury as a sprain and is not considered serious. Reid said Charles could potentially play in the team's second preseason game against the San Francisco 49ers on Friday.
"If he can go, he'll go," said Reid. "We'll see how he does here in the next little bit. We'll see where he's at as far as pain or swelling. We'll see how he does."
Charles also had a foot injury prior to minicamps in the spring. X-rays for that injury were negative as well. He had left that practice after limping off the field.
Charles rushed for 1,509 yards last year. He missed most of 2011 with a torn ACL. He has rushed for at least 1,000 yards in three of the past four seasons.
Rookie Knile Davis, second-year player Cyrus Gray and 25-year-old Shane Draughn back up Charles.
"Draughn got some work ... It gives another guy the opportunity to practice, that's how I look at it," Reid said of Charles' injury. "I thought it allowed Knile, our running back, good quality reps with the one's."