Sporting Kansas City–St. Louis City SC rivalry

The '''Sporting Kansas City–St. Louis City SC rivalry''', is a soccer rivalry between the two Major League Soccer (MLS) clubs Sporting Kansas City and St. Louis City SC.

Background
The cities of St. Louis and Kansas City have a longstanding rivalry, being the two major metropolitan areas in the state of Missouri. St. Louis's addition to MLS for the 2023 season created a new outlet for the inter-city rivalry.

Prior to the clubs' first meeting, Sporting Kansas City accused the Soccer Capitol Podcast, a St. Louis fan podcast, of infringing on the trademark “The Soccer Capital of America,” which was registered to Kansas Training Partners LLC, an affiliate company of Sporting Kansas City.

St. Louis City won the clubs' first meeting at CityPark in May 2023. Sporting KC won the second meeting at Children's Mercy Park in September of that year. The two teams played in their first postseason matchup in the 2023 MLS Cup Playoffs, with Sporting Kansas City (the #8 seed) upsetting the #1 seeded St. Louis in a best-of-three series.

Supporters, players, and staff of St. Louis City SC have referenced the fact that Sporting Kansas City, despite previously claiming to represent the state of Missouri in MLS, plays in Kansas City, Kansas, often referring to the club simply as "kansas".

Names for the rivalry include:


 * Soccer Capital Derby - A reference to the trademark dispute between Sporting Kansas City and the Soccer Capital Podcast, as well as both franchise's claim to their home city being "The Soccer Capital of America".
 * I-70 Derby - A reference to the I-70 Series of Major League Baseball, and the Interstate highway connecting the two cities.
 * The Darbecue - A reference to the barbecue cultures of both St. Louis and Kansas City.
 * Heartland Derby
 * Cease & Desist Derby - Another reference to the trademark dispute.