After a season-opening win against Sam Houston State last weekend, the No. 6 Texas A&M Aggies were upset by the unranked Appalachian State Mountaineers 17-14 on Saturday at Kyle Field in College Station.
Texas A&M was previously 10-0 against non-Power 5 schools in Jimbo Fisher's tenure.
It marked the second upset victory by a Sun Belt Conference team on Saturday after Marshall defeated No. 8 Notre Dame 26-21 in South Bend, Indiana, earlier in the afternoon.
Saturday's win is also App State's second-ever win against an AP Top 10-ranked team and the first in 15 years.