Kentucky-Louisville is one of the best rivalries in college basketball -- maybe sports in general.

Rick Pitino and John Calipari have taken (verbal) jabs at each other. They've responded to slights with slights. Needless to say, they've certainly fueled the rivalry -- and raised some questions about the state's geography.

The teams will play Saturday at noon at Rupp Arena. They're both currently ranked in the top five (errr ... Louisville just lost to Georgetown, so they'll drop, but no new polls until Monday). It's bound to be a great game.

But just in case there wasn't enough negativity, bulletin-board material or bad blood, Kentucky fans have latched on to a new movement. It's called "Louisville doesn't exist."

Really.

Here's the story, according to Kentucky Sports Radio's blog:

A Lexington clothing store recently released a 'Louisville Doesn't Exist' sweatshirt in honor of tomorrow's game, and a #LouisvilleDoesntExist hashtag emerged on Twitter as the popularity of the shirt grew around town. It's funny. It's a shirt. It's a hashtag.

(A twitter search for #LouisvilleDoesntExist is pretty funny, by the way. Here's one of the funniest, in reference to Calipari's vacated seasons: @thedevilwolf: UK fans think they're clever for the #Louisvilledoesntexist movement, but isn't it a takeoff of the NCAA's #caliparidoesntexist movement?)

This movement has gained enough steam to prompt a columnist at the Louisville Courier-Journal to respond.

From the Courier-Journal's Eric Crawford:

Of all the rivalry couture ever produced in the Bluegrass, the "Louisville Doesn't Exist" line has to win the honor of most insipid. First, it flies in the face of logic. Philosopher Rene Descartes, long before Adolph Rupp ever graced the sidelines of Kentucky, theorized his own existence with the dictum: "I'm on a T-shirt, therefore I am" (roughly translated in the French, Je porte un T-shirt, donc je suis). ... But more to the point, if Louisville doesn't exist, how come UK spends more than $1 million per year to get its games broadcast on Louisville's biggest radio station? How come they want so badly to have shows on Louisville stations? If it doesn't exist, why does UK come to town to play a basketball game every year? If it doesn't exist, why does UK roll into town to hold a banquet every season? I could swear they were just here, new president, athletic director, basketball coach all up at the head table having a high time when an off-color joke about the apparently non-existent U of L coach was cracked in front of an adoring Louisville crowd. Must not've happened. Louisville doesn't exist.

This is why rivalries are awesome. I can't wait for the postgame Pitino-Calipari handshake.