Poyer (foot) didn't practice Thursday, Alaina Getzenberg of ESPN reports.
This is a step back for Poyer after he logged a limited session Wednesday. Fellow starting safety Micah Hyde (neck) has yet to practice in any capacity this week, so the Bills are banged up in the secondary heading into a Week 3 clash with a pass-heavy Dolphins offense that features star receivers Tyreek Hill and Jaylen Waddle.