The 2025 NFL season is nearly 30 percent complete, as teams are playing their fifth game of a 17-game season during Week 5.
While some notable teams have stumbled out of the gates, a select few contenders have orchestrated flawless starts to the new season. Going undefeated may not be in the cards, but an undefeated season is not possible without a perfect start in the opening five games of the year
The defending champion Philadelphia Eagles became the first team to reach four wins in 2025, earning a statement win over the previously undefeated Tampa Bay Buccaneers. Philly was quickly joined by the Buffalo Bills, who moved to 4-0 by holding off the feisty New Orleans Saints.
In Week 5, the Eagles looked poised to continue their win streak, opening up a 14-point lead over the Denver Broncos at the start of the fourth quarter.
But the Broncos came storming back, downing their highly-touted opposition to snap their unbeaten start. Later that day, Buffalo saw its perfect start vanish courtesy of Drake Maye and Stefon Diggs' heroics.
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With that, here's a look at the state of the league's perfect sides after a wild Week 5 slate of games.
MORE WEEK 5:
- Can the Bills go undefeated?
- Inside Stefon Diggs' career timeline, from Vikings and Bills to Patriots
- How Baker Mayfield, Sam Darnold went from former Panthers castoffs to finding starting roles with Buccaneers, Seahawks
NFL teams still undefeated
The 1972 Miami Dolphins can rest easy. Both the Eagles and Bills lost on Sunday, ensuring there are no perfect sides left in the NFL this season.
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- Where Jonathan Taylor, Rashid Shaheed rank on list of top 2025 speeds so far
- Latest updates on Mark Sanchez after Fox broadcaster stabbed and arrested in Indianapolis