The carmaker has had a long history of supporting the sport the rest of the world irritatingly calls "football." Audi has been the official automotive sponsor of America's Major League Soccer since 2015; it also also sponsored Munich-area professional German soccer team FC Bayern München since 2002.
D.C. United is one of the 10 charter teams in MLS, dating back to 1996. It's the second-most successful franchise in the series, with four overall championships. (The only team with more? The LA Galaxy.)
Audi, along with several other U.S. branches of the Volkswagen Group, is headquartered in Herndon, Virginia, roughly 25 miles from RFK Stadium, the home D.C. United currently shares with the Washington Nationals major league baseball franchise.