The best defenses in fantasy football for Week 1 are led by dominant units like the Denver Broncos, Pittsburgh Steelers, and New York Jets—all backed by elite defensive talent and favorable matchups to deliver high fantasy point totals as the season begins. Choosing the right defense can mean the difference between a winning and losing start, making these expert DST rankings and matchup insights crucial for fantasy managers seeking an edge in 2025.
Who Are the Best Defenses in Fantasy Football in Week 1?
1) Denver Broncos (vs. TEN)
2) Pittsburgh Steelers (at NYJ)
3) New York Jets (vs. PIT)
4) Minnesota Vikings (at CHI)
5) Arizona Cardinals (at NO)
6) Philadelphia Eagles (vs. DAL)
7) San Francisco 49ers (at SEA)
8) Los Angeles Rams (vs. HOU)
9) Miami Dolphins (at IND)
10) Cincinnati Bengals (at CLE)
11) Kansas City Chiefs (at LAC)
12) Chicago Bears (vs. MIN)
13) Washington Commanders (vs. NYG)
14) Houston Texans (at LAR)
15) Detroit Lions (at GB)
16) Seattle Seahawks (vs. SF)
17) Indianapolis Colts (vs. MIA)
18) New England Patriots (vs. LV)
19) New York Giants (at WAS)
20) Los Angeles Chargers (vs. KC)
21) Green Bay Packers (vs. DET)
22) Las Vegas Raiders (at NE)
23) Tampa Bay Buccaneers (at ATL)
24) Jacksonville Jaguars (vs. CAR)
25) Baltimore Ravens (at BUF)
26) Buffalo Bills (vs. BAL)
27) Cleveland Browns (vs. CIN)
28) New Orleans Saints (vs. ARI)
29) Atlanta Falcons (vs. TB)
30) Dallas Cowboys (at PHI)
31) Tennessee Titans (at DEN)
32) Carolina Panthers (at JAX)
Why the Broncos Will Help You Win Your Week
The Denver Broncos are a premier fantasy football defense option for Week 1 of the 2025 NFL season, making them a smart start for managers looking for an edge. Coming off a year where they ranked as the top fantasy D/ST, Denver boasts a formidable unit that returns nearly all of its key starters, including Defensive Player of the Year Pat Surtain II and pass-rushers Nik Bonitto and Jonathon Cooper.
The franchise made strategic offseason moves, adding Dre Greenlaw and Talanoa Hufanga, plus first-round pick Jahdae Barron, which have only improved both depth and impact in coverage, pass rush, and run defense.
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In Week 1, the Broncos face the Tennessee Titans, who are led by rookie quarterback Cam Ward making his first NFL start at Mile High, a notoriously difficult venue for opposing QBs. Denver’s aggressive defense, top-rated pass rush, and ballhawking secondary are set to exploit a Titans offense missing key players and adjusting to NFL speed.
The Broncos ranked first in sacks and among the league’s best in turnovers last season, offering huge upside for sacks, interceptions, and even defensive touchdowns in fantasy scoring. With favorable game scripts and strong home-field advantage, Denver is possibly the safest and highest-upside defense play to kick off the 2025 fantasy football campaign.
