ORCHARD PARK, N.Y. — Mario Williams and the Buffalo Bills high-priced defense finally flexed its collective muscle, stuffing the Miami Dolphins in a 19-14 victory Thursday.

Safety Jairus Byrd forced a fumble and had an interception, and Bryan Scott sealed the victory with his second interception to end the Dolphins’ last-gasp drive in the final minute. Williams had one of three sacks for a Buffalo defense that limited the Dolphins to 184 yards and 16 first downs.