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As the old adage goes, defense wins championships. So going into the Divisional Round of the NFL playoffs, looking for which fantasy defense is the best could be a good indicator of who will move on to the next round. 

The Indianapolis Colts and Kanas City Chiefs game, despite the snow, could still turn into a shootout with the Chiefs having the worst defense of any 10-win team in NFL history and the Colts facing one of the most prolific and dominant offenses in NFL history. That eliminates both of them from the best fantasy defense conversation.

The Dallas Cowboys do rank as the sixth best scoring defense, best of any team still alive in the playoffs, but anytime you go up against the NFL's best running back and one of the most dynamic offensive players ever in Todd Gurley, you have to be wary. The Los Angeles Rams defense, although it's a little healthier now, still only ranks 20th in points allowed this year and will be going up against a Cowboys offense that has been rolling of late. Neither of them work as the best fantasy defense either.

The New England Patriots and the Los Angeles Chargers game should be played in blistering cold weather, which should help neutralize the offenses a bit, but Tom Brady is Tom Brady and Philip Rivers looks like a man on a mission right now. The Patriots haven't lost at home this year and the Chargers haven't lost outside of California, so one of them could be the best defense this weekend, but it's a 50-50 shot, at best. 

Finally, we have the New Orleans Saints and Philadelphia Eagles, who will be playing in the Mercedes-Benz Superdome so no concerns about the weather exist here. The Eagles have to play Drew Brees at home so that automatically takes them out of contention for the best fantasy defense in the playoffs.

All of this leaves us with one resounding answer – the Saints. They are an under-rated defense that is incredible in their own building. They rank 14th in scoring defense and are the second-ranked rush defense in the league. Although they don't perform nearly as well against the pass, Nick Foles shouldn't expect to rekindle the same magic that carried the Eagles to a Super Bowl last year.

If you have to pick one D as the best defense for the fantasy playoffs this weekend, the numbers, situation and opponents all point to the Saints having the most impressive report card. 

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David Kaestle is not a FanDuel employee. In addition to providing DFS gameplay advice, David also participates in DFS contests on FanDuel using his personal account, username davekaestle. While the strategies and player selections recommended in his articles are his personal views, he may deploy different strategies and player selections when entering contests with his personal account. The views expressed in their articles are the author's alone and do not necessarily reflect the views of FanDuel.