LOS ANGELES — Freshman Kedon Slovis passed for a school-record 515 yards and threw four touchdown passes in Southern California’s 52-35 victory over UCLA on Saturday in the 89th edition of their crosstown showdown. Michael Pittman Jr. caught two touchdown passes and Vavae Malepeai rushed for two scores as the Trojans (8-4, 7-2 Pac-12) wrapped...