Matt's top team defense (D/ST) fantasy football starts for Week 1 of the NFL season. Follow these fantasy football D/ST starts when setting lineups and win more.

Kickoff of the 2025 NFL season is just days away, which means it's time to put the finishing touches on your fantasy football rosters!

RotoBaller analyst Matt Donnelly drops his MUST START D/ST units for Week 1 of the season. Get these dynamic defenses in your lineups now! Win MORE in 2025 with RotoBaller!

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