The Buffalo Bills fell short of their ultimate goals during the 2025 NFL season, losing their streak of winning the AFC East and failing to make the Super Bowl once again.

Many positive results still came considering the team’s 12-5 record.

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But not from everyone in 2025, according to the fancy stats.

Here were the five Bills players on defense that had the lowest Pro Football Focus grades last season:

5. LB Dorian WilliamsSep 18, 2025; Orchard Park, New York, USA; Miami Dolphins running back de'von Achane (28) runs against Buffalo Bills linebacker Dorian Williams (42) in the second quarter at Highmark Stadium. Mandatory Credit: Gregory Fisher-Imagn Images

Sep 18, 2025; Orchard Park, New York, USA; Miami Dolphins running back de’von Achane (28) runs against Buffalo Bills linebacker Dorian Williams (42) in the second quarter at Highmark Stadium. Mandatory Credit: Gregory Fisher-Imagn Images

PFF grade: 57.4.

4. LB Terrel BernardSep 18, 2025; Orchard Park, New York, USA; Buffalo Bills linebacker Terrel Bernard (8) runs against Miami Dolphins wide receiver Jaylen Waddle (17) in the fourth quarter at Highmark Stadium. Mandatory Credit: Gregory Fisher-Imagn Images

Sep 18, 2025; Orchard Park, New York, USA; Buffalo Bills linebacker Terrel Bernard (8) runs against Miami Dolphins wide receiver Jaylen Waddle (17) in the fourth quarter at Highmark Stadium. Mandatory Credit: Gregory Fisher-Imagn Images

PFF grade: 48.8.

3. LB Matt MilanoDec 21, 2025; Cleveland, Ohio, USA; Cleveland Browns running back Trayveon Williams (38) carries the ball as Buffalo Bills linebacker Matt Milano (58) defends during the second half at Huntington Bank Field. Mandatory Credit: Ken Blaze-Imagn Images

Dec 21, 2025; Cleveland, Ohio, USA; Cleveland Browns running back Trayveon Williams (38) carries the ball as Buffalo Bills linebacker Matt Milano (58) defends during the second half at Huntington Bank Field. Mandatory Credit: Ken Blaze-Imagn Images

PFF grade: 46.2.

2. S Taylor RappNov 3, 2024; Orchard Park, New York, USA; Miami Dolphins wide receiver Tyreek Hill (10) runs with the ball against Buffalo Bills safety Taylor Rapp (9) during the second half at Highmark Stadium. Mandatory Credit: Gregory Fisher-Imagn Images

Nov 3, 2024; Orchard Park, New York, USA; Miami Dolphins wide receiver Tyreek Hill (10) runs with the ball against Buffalo Bills safety Taylor Rapp (9) during the second half at Highmark Stadium. Mandatory Credit: Gregory Fisher-Imagn Images

PFF grade: 44.6.

1. DL TJ SandersDec 21, 2025; Cleveland, Ohio, USA; Cleveland Browns quarterback Shedeur Sanders (12) is pressures by. Buffalo Bills defensive end Greg Rousseau (50) during the second half at Huntington Bank Field. Mandatory Credit: Ken Blaze-Imagn Images

Dec 21, 2025; Cleveland, Ohio, USA; Cleveland Browns quarterback Shedeur Sanders (12) is pressures by. Buffalo Bills defensive end Greg Rousseau (50) during the second half at Huntington Bank Field. Mandatory Credit: Ken Blaze-Imagn Images

PFF grade: 40.0.

(Qualifying players only).

This article originally appeared on Bills Wire: PFF: 5 lowest-graded Bills players on defense during 2025 NFL season