A.F.C. Championship Matchup - NYTimes.com After destroying the Denver Broncos in the divisional round, the Patriots will face another pedestrian offense in the Baltimore Ravens. In their divisional-round victory Sunday, the Ravens received a gift of a touchdown from the Houston Texans, and intercepted the rookie backup quarterback T. J. Yates three times - yet still barely hung on to win. But temper your excitement for a blowout just a bit, Patriots fans. The Texans have one of the best defenses in the N.F.L., and although the Patriots played well against Tim Tebow on Saturday, that is hardly an indicator of how they will handle Ray Rice, the Ravens" all-purpose weapon. Beyond that, the Ravens" offense will have to play smarter than it did against Houston. Joe Flacco took ill-timed sacks, and there was questionable play-calling, especially late in the game, from the coordinator Cam Cameron.The The part of their game that has to worry the Ravens is that they struggled to pressure Yates. The Texans have an offensive line that is among the best in the N.F.L., but if Terrell Suggs does not make more of an impression on Tom Brady, the Ravens will have no chance to slow an offense in overdrive. As it is, the Ravens have to get out to a fast start - as they did against the Texans - then not take their foot off the gas. One more thing: draw no conclusions from the Ravens" dominance of the Patriots in the playoffs two years ago. Tight ends Rob Gronkowski and Aaron Hernandez had not even been drafted yet, and the Patriots" opponents have struggled to figure out what to do with them ever since. KEY TO THE GAME: The Ravens have to pressure Brady, and figure out how to defend Wes Welker, Gronkowski and Hernandez. The rest of the N.F.L. would like to know, too.