Steelers' Calvin Austin III returns to practice; team has 21 days to activate rookie WR on 53-man roster | CBS Sports Headlines Steelers' Calvin Austin III returns to practice; team has 21 days to activate rookie WR on 53-man roster Austin has spent the season’s first month on injured reserve … Continue reading Steelers' Calvin Austin III returns to practice; team has 21 days to activate rookie WR on 53-man roster