The Bills brought back a familiar face to help address a shortage on the defensive line.
The team announced they brought back Jay Ross, who was with them after final cuts, but was cut two weeks ago when they needed cornerback help.
He replaced Alex Carrington, who was placed on injured reserve with a torn quadriceps tendon.
The Bills also added Giants preseason phenom Adewale Ojomo to the practice squad, swapping him in for defensive end Izaan Cross.