McKee leads Stanford's 42-28 upset rout of No. 14 USC

Stanford wide receiver Brycen Tremayne, center, celebrates his touchdown catch with guard Branson Bragg, left, and wide receiver Elijah Higgins during the first half of the team's NCAA college football game against Southern California on Saturday, Sept. 11, 2021, in Los Angeles. (AP Photo/Marcio Jose Sanchez)

Southern California quarterback Kedon Slovis (9) runs out of the pocket as Stanford linebacker Ricky Miezan (45) pursues during the first half of an NCAA college football game Saturday, Sept. 11, 2021, in Los Angeles. (AP Photo/Marcio Jose Sanchez)

Stanford running back Austin Jones (20) runs past Southern California safety Chase Williams (7) during the first half of an NCAA college football game Saturday, Sept. 11, 2021, in Los Angeles. (AP Photo/Marcio Jose Sanchez)

Stanford cornerback Kyu Blu Kelly lunges into the end zone to score after intercepting a Southern California pass during the second half of an NCAA college football game Saturday, Sept. 11, 2021, in Los Angeles. (AP Photo/Marcio Jose Sanchez)