The up-and-down Chargers have faced two rugged defenses this season in Philadelphia and Denver, but Sunday's opponent is seen in-house as the toughest test yet.

The Jacksonville Jaguars.

Bolts coach Anthony Lynn summed up their sack-happy opponent as the "biggest challenge of the season" for Philip Rivers and friends, per The Los Angeles Times.

It's tradition to pump up your next foe, but Lynn doesn't need to spin what Jacksonville has done. The Jaguars are giving up an NFL-low 14.6 points per game, while shutting down air attacks and leads the league with 35 sacks.