Jamaal Charles, Charles WoodsonJamaal Charles might want to hire a moving company next time.

The Kansas City Chiefs’ star running back was held out of Sunday’s preseason game against the Carolina Panthers as an unexpected scratch after suffering what coach Andy Reid called a “freak” foot injury.

On Monday, Reid offered more of an explanation of Charles’ injury, revealing that the running back hurt himself while moving out of his dorm at Missouri Western State University at the end of training camp last week.

“I’ll just tell you what happened,” Reid said, via the Kansas City Star. “He was actually carrying a box down the dorms, and he came down the grassy slope there and just tweaked his foot, rolled his foot over on the curb. It was that simple.”

According to Reid, Charles had his foot checked out by the training staff that night. Although there was some cause for concern at first, the injury isn’t serious and the Chiefs can breathe easy.

“He was hurting that night,” Reid said. “The next day he woke up and he was feeling a little bit better, and he was feeling better today, so we’re optimistic about it. Initially, there was a little concern. But they got all the stuff done on it, MRIs and all that stuff, so everything is clear.”

The 27-year-old rushed for 1,287 yards and 12 touchdowns last season, finishing the 2013-14 campaign with 1,980 total yards.