The Buccaneers placed OG Davin Joseph on injured reserve and DE Da'Quan Bowers on the reserve/physically unable to perform list among several moves Monday that got them down to the 75-player roster limit.
Joseph, who was expected to help anchor the offensive line, suffered a serious right knee injury in the team's third preseason game and faces a long rehab as he misses this season.
Bowers, a second-round draft pick in 2011, suffered an Achilles injury during a May practice and is still recovering. The team hopes he will be well enough to play when he is eligible after the sixth week of the NFL regular season.
The team also waived the following players: RB De'Anthony Curtis, LS Andrew DePaola, WR Greg Ellingson, TE Collin Franklin, WR Ed Gant, P Eric Guthrie, OT Mike Ingersoll, LB Brian Smith, S Tramain Thomas and CB Marquese Wheaton.