For those players placed on injured reserve after the team’s 53-man roster cutdown, they may return to practice after week six and to the active roster as early as week 9. Monday Raiders rookie Isaiah Johnson took to the practice field according to media in attendance, which puts him right on schedule for a return to the roster as soon as he is eligible.
The moment a players in injured reserve hits the practice field his 21-day window begins. At the end of that time, the team must either activate him or place him on season-ending injured reserve.