Remember all that time ESPN and other sports media outlets spent hyping up USC as an unstoppable juggernaut during the summer?
Wow, that seems like such a huge waste of time now.
The Trojans were exposed in their first real test of the season when Stanford overpowered them 21-14. It was the most surprising outcome of what turned out to be the most exciting weekend of the college football season thus far.
The loss dropped USC from No. 2 all the way down to No. 13 in this week's AP poll.
USC's loss wasn't the only big news of the weekend, though. Here's a look at some of the other lessons we learned from Week 3.