Brown is dealing with an ankle injury and won't play in Saturday's preseason opener versus the Bills, George Bremer of the Herald Bulletin reports.
Brown saw action in eight games with the Colts during the 2015 season, before being placed on IR with a groin injury. He was slated to potentially see a slight uptick in his role for the upcoming season, but is now dealing with an ankle injury, which limits his ability to impress the coaching staff. He's currently in a boot and remains without a timetable for a return, so Brown will have to wait to make his preseason debut.