From the moment the Roman Catholic Church revealed Thursday that its next leader hailed from Chicago, one question quickly dominated the world of sports: Which of the city’s two Major League Baseball teams does Pope Leo XIV root for?

When Cardinal Robert Prevost was elected Pope Leo XIV Thursday, his brother John took great pains to dispel early rumors that he was a fan of the Chicago Cubs. John told WGN that the pope is a lifelong Chicago White Sox backer, having spent much of his early life on the South Side.