Bullies come in all forms.
The Jaguars' tormentor is Los Angeles Chargers quarterback Philip Rivers.
Since 2010, Rivers has led the Chargers to six-straight wins over the Jaguars. He has dominated Jacksonville by throwing for 1,810 passing yards and 18 touchdowns in those games.
Rivers has only been sacked nine times in those six contests. He has only thrown two interceptions, with both coming in 2010.
Rivers has thrown for three or more touchdowns in five of the six games. He threw for four touchdowns in each of the last two meetings.
"You're talking about a player that has probably played as well against our team as any player that has ever played," Jaguars head coach Doug Marrone said Wednesday.
Marrone served as the Jaguars' offensive line coach during the last two encounters with Rivers. He is well aware of Rivers' one-sided history against the Jaguars.
The Jaguars' head coach is hoping to curb Rivers and the Chargers' winning streak on Sunday.
Housing the NFL's top passing defense, the Jaguars are as equipped as ever to take on Rivers.
The veteran quarterback has thrown for 2,208 passing yards, 13 touchdowns and six interceptions through eight games this season. He has only been sacked 11 times.
However, the Chargers' offense hasn't faced a passing defense quite like the Jaguars' unit.
This defense doesn't get pushed around. It pushes back.
Jacksonville's defense has only allowed four passing touchdowns this season. The group is only allowing 156.4 passing yards per game.
Quarterbacks are only picking up 5.8 yards per passing attempt against the Jaguars. Those same opposing passers have also been sacked 35 times.
All four of those marks rank at the top of the league.
Rivers will need to find a way to evade a defensive front that features Calais Campbell, Yannick Ngakoue, Malik Jackson, Marcell Dareus, Abry Jones and Dante Fowler.
Even if he is able to do that, he will then need to find open targets against a secondary that stars Jalen Ramsey, A.J. Bouye, Aaron Colvin, Tashaun Gipson and Barry Church.
Campbell, Dareus, Bouye and Church are new recruits who have never played Rivers in a Jaguars uniform. Ngakoue and Ramsey were rookies during last year's meeting.
The Jaguars' defense has evolved. Rivers will be a good test for the unit.
Last week, the Jaguars won for the first time at EverBank Field this season. The team also won back-to-back games for the first time in over a year.
In Week 10, they'll look to produce their first win over the Chargers and Rivers in over a decade.
Follow Mike Kaye on Twitter at @Mike_E_Kaye.