USC followed that up with a last-second, 56-yard touchdown pass from San Darnold to Ronald Jones.
Both of these storied programs have had their recent stumbles.
The Longhorns' first-year bench boss Tom Herman has also enjoyed regular success when facing nationally-ranked opponents, compiling a ideal 6-0 SU record while coaching Houston, including four outright wins with the Cougars pegged as underdogs.
The Trojans have dominated during their year-long tear, claiming victory by double-digit margins in nine of 11, and producing against the spread wins on eight occasions, including a 5-2 ATS mark on home turf.
As the 2017 college football continues on Saturday, Texas and USC face off at 8:30 PM EST in L. A. Memorial Coliseum, Los Angeles, California.
Darnold hit Deontay Burnett on USC's first play of the opening overtime, the winning field goal then made possible when the Trojans defense forced a Texas fumble in the second OT.
The journey to get there proved to be full of surprising twists. Texas tied the game 7-7 with 19 seconds left in the first half, doing something not many people expected by going into halftime deadlocked with USC.
Gustin, as a result, did not practice during the week before the Trojans hosted Texas.
LOS ANGELES USC and Texas have a flair for the dramatics. With several punts, a missed USC field goal and two Texas turnovers, the game stayed scoreless until the final moments of the second quarter, when both teams found life.
Texas had knotted the score only two players earlier on a Pick 6, when safety DeShon Elliott intercepted a pass by Darnold, returning it 38 yards for a touchdown.
How can you tune in to Saturday afternoon's game between Texas and USC?
In what was billed as a reprise of a college football classic - the 2006 Rose Bowl won by the Young-led Longhorns - very little was classic USC. Those teams are the Texas Longhorns and the USC Trojans. The 6-foot-6, 212-pound wideout consistently bailed out quarterback Sam Ehlinger and kept Texas in the game. He completed a 17-yard pass to Lil'Jordan Humphrey.
The officiating was terrible in key moments, including missing three Pass Interference calls against USC and not calling a facemask/grasping the helmet penalty that led to one of Sam Ehlinger's two critical fumbles. Collin Johnson and Reggie Hemphill-Mapps have combined for 291 receiving yards and one touchdown while Armanti Foreman has 10 receptions.
But on fourth down, McGrath's 46-yard attempt was wide left. Huntley has been versatile for the Utes, throwing for 527 yards with a 73.5 completion percentage and leading the team with 159 rushing yards and three rushing touchdowns. Boyd plays better down the field in straight-line situations, which is more of Mitchell's style of game for the Trojans. Instead, they played in fits and starts - mostly just fits - doing just enough to hold off a feisty Longhorns squad that had a true freshman quarterback making his first road start and was playing without its top offensive lineman.
Texas: After a bye week, Big 12 play begins with a visit to Iowa State on Thursday, Sept. 28.