The Buccaneers officially activated running back Charles Sims from the short-term injured reserve Saturday, per the team's official website.
With Doug Martin likely to sit out with an ankle injury, Sims could split some work with Bobby Rainey during his season debut against the Browns. The Bucs also waived wide receiver/kick returner Trindon Holliday, along with promoting wide receiver Marcus Thigpen and defensive tackle Matthew Masifilo from the practice squad.