This was either a crazy coincidence, or a perfectly executed prank.
On the eve of the Ohio State-Michigan showdown at the Big House, Buckeyes players went to check into their Ann Arbor hotel.
There was only one problem: their key cards didn't work. Not just one or two of the players, but every single one of them.
Here's a video of the team standing in the hallway wandering aimlessly.
The Wolverines clearly got the first laugh.