Week 4 of the 2026 NFL season arrives with the league’s first real separation between contenders and pretenders starting to show, and Sunday, October 4 is stacked with matchups that could shape the playoff picture for months to come.
Broncos at 49ers: The Marquee Game of the Week
The headline act is Denver at San Francisco, a Sunday night clash between two franchises trying to prove last year’s disappointments are behind them. Bo Nix returns under center for the Broncos after an ankle injury cut his 2025 season short in the AFC divisional round, giving Denver’s offense its full complement of weapons for the first time in months. The 49ers, meanwhile, are aiming to finally field a healthy roster after injuries derailed their entire 2025 campaign — and a full-strength San Francisco team is a very different proposition for opposing defenses.
Expect this one to be decided in the trenches, with both teams’ offensive lines under pressure to give their quarterbacks time against two disruptive pass rushes.
Rams at Eagles: An NFC Heavyweight Bout
Philadelphia hosts Los Angeles in a game with genuine playoff-atmosphere stakes, even in Week 4. Both teams are viewed as the top competition for Seattle atop the NFC, and their recent playoff meetings have been classics. With Lincoln Financial Field rocking, this is the kind of early-season measuring-stick game that tends to matter when tiebreakers are sorted out in January.
Other Games to Watch
- Colts at Commanders (London) — an international showcase at Tottenham Hotspur Stadium.
- Cardinals at Giants — the Giants look to build early momentum under a new coaching staff.
- Patriots at Bills — a divisional test that could set the tone for the AFC East race.
- Lions at Panthers — Detroit looks to keep pace early in the NFC playoff hunt.
With the World Series field taking shape at the same time — see our 2026 MLB Playoffs preview — and the NBA season just weeks from tipping off (our NBA 2026-27 Opening Night preview has the details), it’s a stacked October for sports fans across every league.
Why Week 4 Matters
Four games into a season is early, but it’s often the first point where the eye test and the box score start to agree. Teams that looked good on paper in September either back it up or start showing cracks, and Week 4’s combination of marquee matchups and division tests should tell us a lot about who’s actually built for a long playoff run.
