What to watch in NFL Week 4: Preseason contenders running out of room for error

Preseason NFL contenders face mounting pressure in Week 4 as teams like the New England Patriots, Green Bay Packers, and Dallas Cowboys risk falling into dangerous 1-3 starts. Historically, only 14.9 percent of teams opening 1-3 make the postseason. Additionally, five winless clubs, including the Houston Texans and Los Angeles Chargers, desperately need victories, while struggling former heavyweights such as the Los Angeles Rams and Philadelphia Eagles clash in an effort to stabilize their seasons.

Key matchups on Sunday's slate include Drake Maye and the Patriots visiting Josh Allen's high-scoring, unbeaten Buffalo Bills, while the undefeated Las Vegas Raiders host Patrick Mahomes and the Kansas City Chiefs in an AFC West showdown. Elsewhere, Joe Burrow's Cincinnati Bengals host Trevor Lawrence and the Jacksonville Jaguars in a battle of 2-1 teams featuring elite defenses.