List of Undefeated NFL Teams Remaining in 2021 Season After Week 4

Updated: Sep 10, 5:00pm UTC

We're only through four weeks of the NFL season, but the 2021 season has brought us a ton of parity, with nobody looking unbeatable.

Three of the five undefeated teams from last week lost on Sunday, and the Las Vegas Raiders made that four of five on Monday.

Undefeated NFL Teams 2021

Here's everything you need to know about the NFL's remaining undefeated teams heading into Week 5.

Which NFL Team Is Undefeated This Season?

There is currently only one team who is undefeated during the 2021 season.

NFL Undefeated Teams 2021

1. Arizona Cardinals (4-0)

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