Brent Pry and Purdue's Ryan Walters squared off as defensive coordinators in a nine-overtime game between Penn State and Illinois in 2021. (Ivan Morozov)

Before Virginia Tech’s Brent Pry and Purdue’s Ryan Walters were head coaches about to square off in Lane Stadium this week, they were high-profile defensive coordinators. Nearly two years ago, they played in about the weirdest game possible.