Fresh off a win over their longtime rivals, the Chicago Bears, the Packers stand at 5-4 as they welcome the Baltimore Ravens to Lambeau Field this Sunday. The victory in Chicago marked the first of Brett Hundley’s tenure as starting quarterback, as well as the third-year signal caller’s most promising performance to date.

For some time now, Baltimore’s identity has been their hard-hitting, black and blue style of defense. Unfortunately for Hundley and the Packers, the 2017 Ravens bring a stingy defense to the table once again—only, the way they go about their business has changed a bit.

From 2001 to 2016, the Ravens fell outside of the top 10 in rushing defense just four times. Three such instances, however, have come since 2012, a season in which they finished 20^th in the league. Fast-forward to 2017, and Baltimore currently ranks 28^th in the league, surrendering a shade under 126 rushing yards per game—obviously a far cry from the stout defensive units the rest of league has grown accustomed to over the years.

Still, the Ravens clock in at sixth in total defense for 2017, and the biggest reason has been their extremely opportunistic pass defense.

Some quick notes:

• At 184.7 yards per game, the unit ranks third in the NFL in pass defense.
• They lead the league in interceptions with 13, and have five players with at least two interceptions on the year.
• They have held opposing quarterbacks to a just under 57 percent completion rate, second only to the Chiefs.
• They trail only the Jaguars in opponent quarterback rating, posting a 69.8 average.

The numbers paint a relatively clear picture—this isn’t the Ravens defense of old. But they can be just as dangerous if you’re not careful.

For the Packers, concern in this matchup obviously stems from an inexperienced starting quarterback facing a defense that has survived on the mistakes of opposing passers. Three of Baltimore’s four wins on the season have come in games where their defense snagged two or more interceptions.

That’s not to say Mike McCarthy and his staff should limit their trust in Hundley, and they probably won’t. But it wouldn’t shock anyone if the game plan is heavy on quick-hitting, rhythm passes that don’t allow the Ravens’ ball-hawking secondary to break on the football.

One area the Packers could look to exploit is their tight end matchups. According to Football Outsiders, the Ravens rank dead last in the league in DVOA against opposing tight ends, so Lance Kendricks and Richard Rodgers could be busy. Regardless, this will be the toughest test Hundley has faced yet, and the Packers can ill-afford for him to give away possessions by being baited into mistakes.

Green Bay made a more concerted effort to run the ball last week in Chicago, which resulted in a balanced offensive attack and wound up paying dividends when all was said and done. With Aaron Jones out and Ty Montgomery’s status in doubt, they’ll turn to Jamaal Williams to handle the majority of the carries. How successful those carries turn out to be could very well make all the difference for the Packer offense. The success of the passing game, then, will depend on a combination of a serviceable running attack as well as Hundley’s ability to diagnose his options and make smart decisions with the football when he gets the chance to make a play.