Will the NFL ever see another defense as dominant as the 2000 Ravens?
The Viz: The Pittsburgh Steelers vs. Baltimore Ravens Through Time
Ravens News 6/23: Flexible Defense and more - Baltimore Beatdown
Football Outsiders lists six Ravens defenses in the best of the last 30 years - Baltimore Beatdown
Mike Preston: Will there ever be another dominant NFL defense like the 2000 Ravens? Don't count on it.
Baltimore Ravens: The Good, Bad, & Ugly from 42-38 Loss to Miami
How does the 2018 Ravens defense stack up to legendary 2000 Ravens 'D'? It's surprisingly close
Baltimore Ravens: Good, Bad, & Ugly - Here's to You, Mr. Robinson
John Harbaugh: Ravens Are Healthiest They've Been In 'Long Time' With Titans Looming - PressBox
It's early, but 49ers defense is on historically elite pace - ESPN - San Francisco 49ers Blog- ESPN