The Bills released Delaney (knee) off injured reserve with an injury designation Monday, per the NFL's transaction log.
Delaney (knee) was placed on the Bills' reserve/injured list Sunday.
Delaney did not return to Saturday's presason game against Carolina due to a knee injury.
The Bills signed Delaney on Thursday, Nick Wojton of BillsWire.com reports.
Delaney registered five tackles (four solo), including one for loss, during the Buccaneers' 20-18 loss to the Steelers in Week 6.
Delaney (ankle) is inactive for Sunday's game against the Saints, Jenna Laine of ESPN.com reports.
Delaney (ankle) has been ruled out for the remainder of Sunday's contest against the Bears, Scott Smith of the Buccaneers' official site reports.
Delaney signed a contract with the Buccaneers on Tuesday, Greg Auman of The Athletic reports.
Delaney was released by the Redskins on Monday.
Delaney was waived by the Dolphins on Wendesday, Joe Schad of The Palm Beach Post reports.