New Orleans Saints left tackle Terron Armstead and Kenny Vaccaro did not practice Wednesday, according to the practice report.
Armstead took himself out of Sunday's game against Tampa Bay because of a shoulder injury suffered late in the first half. Vaccaro had a groin injury Sunday and did not finish the game.
Guard Larry Warford, who was inactive with a stomach injury, was listed as a limited participant, as was defensive end Alex Okafor (ankle) and wide receiver Michael Thomas.
The Saints visit the Bills on Sunday at New Era Field.