OWINGS MILLS, Md. -- It looks like a major mismatch Sunday night with Pittsburgh Steelers quarterback Ben Roethlisberger coming off a career game and facing a short-handed Baltimore Ravens secondary.

History suggests you shouldn't write off the Ravens so easily.

In 15 meetings with the Ravens, Roethlisberger has one 300-yard passing game (2011) and has thrown more than two touchdowns in a game once (2007).

Roethlisberger certainly owned the Ravens early in his career, winning seven of his first 10 games against them. He led game-winning drives in six of them.

But it looks like the Ravens are the ones who have had Roethlisberger's number lately. The Ravens have beaten him in four of the last five meetings, recording as many interceptions (five) as touchdowns allowed (five). His passer rating against the the Ravens since 2011 is an extremely mediocre 78.2.

Perhaps the Ravens' recent success comes from the fact that they respect him so much.

"Every quarterback is unique. And Ben is very unique, I'd guess you say," Ravens coach John Harbaugh said. "He's big. He's very strong, very hard to bring down. Nobody does the extended play thing better than Ben."

And nobody plays Roethlisberger better in those scrambling situations than the Ravens. Since 2011, Roethlisberger has a 75.5 rating when throwing outside the pocket against the Ravens with three touchdowns and two interceptions. Against the rest of the NFL, he has a 115.1 rating outside the pocket with 13 touchdowns and two interceptions.

Harbaugh said the Ravens defense always practice scramble drills, but "there's emphasis when you play the guy that might be the best at it in the league."

The fact that Roethlisberger threw for 522 yards and six touchdowns last Sunday doesn't change how the Ravens approach the Steelers.

"It's always been to stop 7 [Roethlisberger's number]," cornerback Lardarius Webb said of the game plan against the Steelers. "That's always been our thing. If we can stop 7, we can win the game. The front seven guys will take care of the run. We have to take care of 7, however we can do that with pressure. We have to affect 7 if we can to win this game."

The Ravens will be without two of their top three cornerbacks when they play in Pittsburgh. Jimmy Smith is out with a sprained foot, and Asa Jackson is on short-term injured reserve with a toe injury.

There are three healthy cornerbacks on the roster (Webb, Dominique Franks and Chykie Brown), and the team can move safety Anthony Levine to corner as well.

"Every team faces some kind of a situation at some position, and we've had injuries all year in different positions," Harbaugh said. "It's not something we talk about. We don't make a big deal about it. It's not a point of emphasis for us. It's just we're the team, and whoever is a part of it goest out there and does their best."