It was an all-around bad day Sunday for the Chargers, who were blown out at home by the Atlanta Falcons, 27-3. Blame everybody: offense, defense, special teams and coaches.

Offense: F

The Chargers failed to reach the end zone for the first time in 151 games. The offense had four turnovers, including two fumbles deep in the red zone.

Defense: F

The Falcons offense converted 8 of 13 (62%) third-down opportunities. The D-line was unable to get consistent pressure on QB Matt Ryan. The secondary played soft and Ryan completed 30 of 40 passes for 275 yards and three TDs.

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Special teams: D

P Mike Scifres uncharacteristically kicked the ball off the side of his foot while punting out of the end zone in the fourth quarter. The 29-yard punt gave the Falcons the ball on the San Diego 32. Three plays later, Atlanta put the game out of reach with a touchdown.

Coaching: F

The Chargers looked unprepared in all three phases. The Falcons were coming off a Monday night game and even skipped their padded practice, but nonetheless dominated the game.

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Follow Chargers reporter Dan McLellan on Twitter @CBSChargers and @sandiegosports.