On Sunday, the Buccaneers signed safety Vince Anderson, defensive end George Johnson and tight end Ryan Purvis to the practice squad.
They added three more players on Monday, bringing back tackle Derek Hardman and adding two other rookies who spent their first NFL preseasons with other teams, tackle Will Barker and wide receiver Dezmon Briscoe.
NFL teams can carry up to eight practice squad players at a time and the Bucs say they will likely have the squad filled out by Tuesday afternoon.