Ravens' No. 1 defense testament to time-tested system (The Associated Press)

There once was a time when Ray Lewis served as the centerpiece of the best defense in the NFL. The current edition of the Baltimore defense is not yet worthy of being compared some of the great ones of the past, most notably the 2000 version, which set a record for fewest points allowed in a 16-game season before winning the Super Bowl. ”They’re the first-rated defense in the league, so no one has done a better job over the course of the season than them,” Patriots quarterback Tom Brady said.
Source: Yahoo.com