This is how it went down from an article on the game the following day.....
" During the start of the third quarter the Trojans showed signs of life. Slovis threw a 55 yard pass to Amon-Ra St. Brown gave some momentum to USC. A couple players later Stephen Carr rushed for a two yard score to cut the lead to 24-28. The ensuing kickoff saw the Trojans recover an onside kick which gave USC all the momentum. However, USC couldn't capitalize on the opportunity given to them and lose their quarterback all in the same drive. Hawkeyes junior defensive end A.J. Epenesa sacked Slovis causing him to fumble. Trojans tackle Austin Jackson would recover the fumble but Slovis would leave the game with a sprained elbow and wrist. Matt Fink would finish the game in place of the injured Slovis."
So don't make stuff up. USC had all the momentum and a chance to take the lead when Slovis went down. And it says here he had a sprained elbow and wrist, which is correct because it happened when he tried to throw but Epenesa pulled Slovis arm back on the strip.
Epenesa made the play, so you have to give him credit, but the game turned on that play no question. Had Slovis not been injured and forced to leave the game, and USC had taken the lead there, I think it's a ball game right down to the end.
Like I said, it's tough to win with your 3rd string QB.