Penalties were one of many problems for the Buffalo Bills in last Sunday's 22-10 loss to the San Diego Chargers.

The Bills had 11 flags, tied with three other teams for the most in Week 3, and were penalized a total of 110 yards, tied for third-most last week.

On the season, the Bills have 26 penalties, tied with the Philadelphia Eagles and St. Louis Rams for sixth-most in the NFL. The Bills' penalty yardage margin -- their own penalty yardage against their opponents' -- is plus-151, third-worst in the NFL.

Cornerback Leodis McKelvin leads the Bills with four total penalties for 60 yards. He has been flagged three times for defensive pass interference (one was declined) and once for an illegal substitution. McKelvin is tied with several other players for the third-most penalties in the league; Tennessee's Blidi Wreh-Wilson leads the NFL with six, while Indianapolis' Greg Toler has five.

Tight end Scott Chandler, cornerback Stephon Gilmore, linebacker Brandon Spikes, wide receiver Sammy Watkins, and defensive end Jerry Hughes have all been flagged twice, tied for second-most on the team.

No team has been penalized for defensive pass interference as much as the Bills, who have been flagged five times.