LOS ANGELES — Penn State won a thriller Saturday against USC, rallying from two touchdowns down at halftime to ultimately secure a 33-30 win and stay undefeated on the season. While the Trojans do now have three losses, USC is still the most talented team that the Nittany Lions have faced so far, making this comeback a key checkpoint for head coach James Franklin’s program and their hopes of making the College Football Playoff. However, USC had an opportunity to win the game late. After Penn State quarterback Drew Allar led the Lions on a 75-yard drive to tie the game, the Trojans still had ne…