Protecting Andrew Luck has been an issue all year for the Colts anyway. But their quarterback is having an even harder time now, with injuries hitting his offensive line. Center Ryan Kelly missed a few snaps y but has returned to the game, but right tackle Jack Mewhort won’t be back. Mewhort has already been ruled out for the rest of the game with a knee injury, forcing them to shuffle their line again against Whitney Mercilus and the Texans.