Baltimore's defense taking over

Posted by ESPN.com's James Walker

MIAMI -- Dolphins Stadium is getting quiet and quarterback Chad Pennington is getting flustered.

That means the defense of the Baltimore Ravens is starting to take command of this football game.

Baltimore is putting on a clinic through three quarters, taking a 20-3 lead in this wild-card matchup after Le'Ron McClain's latest touchdown run. But it's the Ravens' defense that has forced turnovers in four of Miami's last five possessions dating to the first half.

That has quickly turned a 3-3 tie to a 17-point lead for Baltimore. Pennington has four interceptions and Miami's offense hasn't gotten much done on the ground, either. Expect the Dolphins to air it out more in an attempt to put together a rally.