Anderson isn't practicing Wednesday and appears to be dealing with a minor injury, Bill Voth of the Panthers' official site reports.
The wideout reportedly tweaked something in a joint practice with the Colts last Friday. He then missed Sunday's preseason game against the Colts, though he presumably wouldn't have played even if he had been healthy, given that Sam Darnold, DJ Moore and other key starters were held out. In any case, Anderson could also miss Carolina's second preseason game this Sunday against Baltimore, but that wouldn't create much concern about his availability for the regular season. He was present at Wednesday's practice, wearing a helmet but no pads.