The college football world has witnessed a stunner as the No. 13 Penn State Nittany Lions collapsed in their 24-20 upset loss to the Wisconsin Badgers on Saturday evening.

This game marked the teams' conference opener in the Big Ten. Penn State entered the contest with a perfect 3-0 record, being firm inside the AP Top 25. Meanwhile, Wisconsin came into the matchup with a 2-1 record, wanting to pull off the upset.

The Badgers got their wish. Despite trailing 20-10 going into the fourth quarters, the visitors came alive in the last 15 minutes of regulation by outscoring Penn State 14-0. The Nittany Lions failed to respond down the stretch, faltering in critical moments as they suffered their first loss of the season.

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