Former KFNS host Tim McKernan and his company, InsideSTL Enterprises, bought the weekday air time for WGNU, and the station switched to a Monday-Friday only sports format on August 1, 2013.
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The station briefly made national headlines when former St. Louis Cardinals player Jack Clark, who cohosted "The King and the Ripper" with longtime St. Louis radio personality Kevin "the King" Slaten, claimed Los Angeles Angels slugger Albert Pujols had performance-enhancing drugs (PEDs) while Pujols was with the Cardinals.