Igor Olshansky has delivered a modest payoff for the Cowboys this season. He's racked up 30 tackles -- including at least three tackles in three of the last four games -- and one sack. Unfortunately for Dallas, that lone sack is Olshansky's only impact play. He's yet to force a fumble or knock down a pass at the line of scrimmage since trading in his lightning bolts for a blue star.
Olshansky, known best for his raw power and impact as a run-stuffer, was brought to Dallas to boost the team's run defense. However, the Cowboys are giving up 4.2 yards per carry, the exact same average they permitted last season before his arrival.
He'll look to make more of a difference against a Chargers team he obviously harbors ill will towards. Although he's friendly with most of the players, Olshansky feels he was misused by the coaching staff and underappreciated by the front office.
"I didn't see a future for me. I think the Chargers didn't see a future for me. So I had to close my chapter with San Diego and start a new chapter with anyone who was interested," said Olshansky in this exclusive interview a few weeks back.
LB Kevin Burnett
In a statistical anomaly, the AFC's two worst running teams happen to boast the best records in the conference: the 12-0 Indianapolis Colts and the 9-3 Chargers. This just one season after the worst rushing team in the league, the Arizona Cardinals, marched all the way to the Super Bowl.
Bottom line: Olshansky can shut down running lanes with authority and it might not make much of a difference.
Kevin Burnett, on the other hand, has a skill-set perfectly suited to make an impact on Sunday. He's slid back into his role as the nickel linebacker with Brandon Siler starting and playing in running situations. Burnett is strong in coverage and as a pass-rusher; he already has a career-high 2.5 sacks despite injuries (ankle, head) that kept him out of three games and limited him in others.
He'll have plenty of chances to showcase his wares against a Cowboys squad that averages 34.5 pass attempts per game.
Burnett will also play a role in defending the player who figures to vex San Diego more than any other: TE Jason Witten.
"Every week you go in and you identify the guys that they want to feature, whether it be their defense, special teams or offense," Norv Turner said. "Obviously, [the Cowboys] feature both their tight ends (Witten and Martellus Bennett). They do a good job schematically using those guys. It's something we're going to spend a lot of time on."
Burnett and Olshansky both want to prove their former teams made a mistake by letting them walk. Whoever makes his point more emphatically on Sunday will help his new team move one step closer to a postseason berth.
Which player will extract his revenge on Sunday? Talk it out in the message boards.
Michael Lombardo is a member of the Pro Football Writers of America and a long-time contributor to the Scout.com network. His analysis has been published by the NFL Network, Fox Sports and MySpace Sports. He has followed the Chargers for more than 15 years and covered the team since 2003. You can see more of his updates by following him on twitter.