Thompson (undisclosed) did not participate in Saturday's practice, Alex Insdorf of BoltBeat.com reports.
Thompson exited Thursday's preseason game against the 49ers early due to injury. He was taken to the blue medical tent and his night was promptly over. It remains unclear what type of injury Thompson is dealing with, but a quick exit and inability to practice are not good signs. If the 23-year-old must miss time, KeAndre Lambert-Smith could see significantly more attention in the rest of the preseason and start of the regular season.