Minnesota and Wisconsin have played football against each other since 1980, and competed for Paul Bunyan's Axe since 1948. Their 123 all-time meetings are the most in college football.
Any rivalry spread over a one and a quarter centuries between neighboring states -where each school is the only major college football program within state borders, and a heated, long-standing NFL rivalry carries the animosity over from Saturday to Sunday - is going to build up its share of bad blood.
But when the Badgers and Gophers gather in Madison on Nov. 29, the red-hot anger will be complimented with a touch of purple.
The clubs will wear purple "1 in 26" stickers promoting Lily's Fund, a charity that works to raise awareness for epilepsy. Minnesota head coach Jerry Kill lives with epilepsy and donated $100,000 to start a charity with the Epilepsy Foundation of Minnesota in May.
"To show support of Minnesota Coach Jerry Kill and the 1 in 26 people who will develop epilepsy in their lifetime, Badger and Gopher players will mark epilepsy awareness month by wearing purple stickers on their helmets. Coaching staff will also be sporting purple gear, and fans are encouraged to wear both their team colors AND something purple," the website reads.
Well done, Badgers and Gophers.