Liuget exited Tuesday's practice early with a foot injury, U-T San Diego reports. Liuget missed two recent practices due to the same issue, which is apparently lingering with the defensive lineman. After playing all of last season with a torn labrum in his shoulder, Liuget was hoping for a healthy 2014 campaign, but he already has a hurdle to clear on that front. As of now, it's uncertain whether Liuget will be able to feature in the Chargers' preseason opener on Friday.