According to Jamie Plunkett over at Frogs 'O War, Casey Pachall has been taken to surgery after leaving the game against SE Louisiana in the first half with an unspecified "lower arm injury". The story can be found here. Some sources are indicating that Pachall may have broken one or more bones in his wrist. More information as this situation develops.
Sunday morning update: ESPN is reporting Pachall had surgery on his arm Saturday and is expected to miss multiple games. You can read more at ESPN.com here. The good news is that the injury was to his non-throwing arm.