The NFL's unbeaten ranks have thinned to just three teams following a dramatic Week 4. The Kansas City Chiefs and San Francisco 49ers both held onto their perfect records, while the Minnesota Vikings also marched on to a 4-0 start.
The Kansas City Chiefs were pushed to the limit by divisional rivals the Las Vegas Raiders, ultimately securing a 30-27 victory. The Raiders led 13-10 heading into the final quarter, which saw three lead changes before the Chiefs clinched the win. Running back Kenneth Walker scored two touchdowns in 19 seconds for the Chiefs, who regained possession immediately after forcing a fumble on the kick-off return.
The San Francisco 49ers also maintained their undefeated status, beating the Denver Broncos 24-14. The game was tied 3-3 late in the third quarter before Christian McCaffrey's touchdown in the fourth quarter gave the 49ers breathing room. George Kittle sealed the win with a significant catch-and-run.
Elsewhere, the New England Patriots, led by quarterback Drake Maye, bounced back from a previous loss to defeat the Buffalo Bills 29-26. The Los Angeles Rams also secured a road victory, beating the Philadelphia Eagles 24-20, despite the Eagles' mounting injury concerns ahead of their London game.