The Saints ruled out starting safety Kenny Vaccaro, who has been one of the best cover men in the league this season, for Sunday's game against the Bills.
Vaccaro suffered a groin injury last week against the Tampa Bay Buccaneers. Chris Banjo finished the game against the Bucs and is expected to start in his place.
Left tackle Terron Armstead (chest) was a limited participant in practice Friday after missing two days. Armstead and guard Larry Waford (abdomen) are listed as questionable.