Caleb Williams passed for 268 yards and three touchdowns and rushed for two more scores, and No. 8 Southern California overcame an apparently serious injury to top running back Travis Dye in a 55-17 victory over Colorado on Friday night. Williams accounted for five total touchdowns in his fourth consecutive outstanding game for the Trojans (9-1, 7-1 Pac-12), who warmed up for season-defining games against No. 9 UCLA and No. 20 Notre Dame in the next two weeks with a slow start followed by a blowout victory over the Buffaloes (1-9, 1-6).Former Colorado receiver Brenden Rice had 70 yards receiving and a touchdown for the Trojans, while Tahj Washington and Austin Jones caught TD passes from Williams in the third quarter. Jones threw up a 2 and a 6 after his score to honor the jersey number of Dye, the Pac-12's second-leading rusher with 884 yards. Dye left the field on a cart with an air cast on his left leg after getting tackled awkwardly in the second quarter. The Oregon transfer and Los Angeles-area native has been a key component of the Trojans' immediate transformation from a four-win program to a College Football Playoff contender. - USC/AP College Football