Michigan, Texas among top 25 teams on upset alert in a landmine-filled Week 4.

Michigan, Texas among top 25 teams on upset alert in a landmine-filled Week 4. Several heavy favorites must watch their footing against sneaky-good opponents this Saturday College football's Week 4 slate holds a warning label for several contenders flirting with danger as conference play arrives and schedules intensify across the Power Four.

The SEC owns the spotlight with a record-setting four games featuring AP Top 25 teams, an unprecedented showcase that will reshape the early playoff conversation before Saturday night. Key points from the original article: • Teams on upset alert in Week 4 • Texas • Utah • Louisville • Michigan • NC State • UCLA