What to know for College GameDay's takeover of Duke's campus

What's happening: This will be the biggest challenge of the season yet for the undefeated Blue Devils, who trounced Connecticut last week.

• Notre Dame is chasing a road win after a heartbreaking last-minute loss at home last week against Ohio State.

The intrigue: In only his second year as head coach, Mike Elko has led Duke to a 4-0 start, including a win over top-10 Clemson.

• Notre Dame quarterback Sam Hartman, a Charlotte native and graduate transfer, faced Duke twice when he was at Wake Forest.

Details: GameDay is 9am-noon Saturday, Sept. 30. It'll be at Abele Quad, located just in front of the iconic Duke Chapel, according to ESPN. Kickoff is at 7:30pm.

• Actor Ken Jeong, a Duke graduate known for films like "The Hangover," will be the guest picker on the show.

Pro tip: Come early to GameDay (like, around 6 or 7am) with a creative sign to secure a good spot amid the action. Shouldn't be hard for Dukies — y'all are accustomed to showing up early for college sports.