Cooper (groin) was a limited participant in Tuesday's practice, Zach Jacobson of 247Sports.com reports.
Cooper sustained a groin injury in early August, which has prevented him from participating in practices and preseason games. He has recovered enough to return to practice in a limited capacity, though the Packers could take the cautious route and keep him out of Saturday's preseason finale against the Ravens. As a rookie second-round pick, Cooper's spot on Green Bay's 53-man roster should be safe, and he'll likely serve primarily on special teams while operating in a backup role at linebacker.