Most penalized Buffalo Bills: Nos. 1-5

Breaking down the most-penalized Buffalo Bills players during the 2013 season:

No. 4 (tied): Aaron Williams

Position: Safety

Snaps: 81 percent (defense), 21 percent (special teams)

Penalties: 5 defense

Total penalty yards: 53

Quick take: Williams three costly penalties early this season. In Week 2, he was called for unnecessary roughness on third down, extending a Carolina Panthers drive. In Week 4, he was flagged for a horse collar tackle against the Baltimore Ravens. And in Week 5, he kept the Cleveland Browns on the field after another unnecessary roughness flag on third down. Even in his third season, Williams was one of the youngest players on the Bills' roster, so outside-the-limits play may come with the territory but he needs to continue to reel that in as he matures within the defense.

No. 4 (tied): Nickell Robey

Position: Cornerback

Snaps: 53 percent (defense), 8 percent (special teams)

Penalties: 4 defense, 1 special teams

Total penalty yards: 53

Quick take: Since the Bills got solid play this season out of Robey, an undrafted rookie, his flags are less of an issue. He will need to cut down on costly defensive pass interference penalties and prove that he can play bigger than his size (5-foot-8, 165 pounds) without costing his team with penalties.

No. 3: Leodis McKelvin

Position: Cornerback

Snaps: 81 percent (defense), 26 percent (special teams)

Penalties: 3 defense, 1 special teams

Total penalty yards: 54

Quick take: Despite his relatively high playing time, McKelvin was flagged only three times on defense, which is a positive for the former first-round pick who had a career season. He finishes high on this list because of his penalty yardage, mostly the result of a 29-yard pass interference call in Tampa.

No. 2: Cordy Glenn

Position: Left tackle

Snaps: 100 percent (offense), 14 percent (special teams)

Penalties: 6 offense

Total penalty yards: 58

Quick take: Glenn played every snap this season, so naturally his penalty tally will be higher than most. If there's one flag to pick out against Glenn, it would be his unnecessary roughness penalty in Week 4's win over Baltimore.

No. 1: Eric Wood

Position: Center

Snaps: 100 percent (offense)

Penalties: 7 offense

Total penalty yards: 60

Quick take: Wood was flagged twice for false start penalties, which are tough to excuse if you're the one snapping the ball. Otherwise, the captain's playing time gives him a pass for leading the team in penalty yardage.

Season totals:

Penalties: 109 (8th-most in NFL)

Penalty yards: 952 (7th-most in NFL)