After some initial confusion, Prevost was confirmed to be a White Sox fan by his brother, John. He's not a Cubs fan. In fact, Prevost is such a big White Sox fan that he was at Game 1 of the 2005 World Series at what is now known as Rate Field. Prevost made an appearance in the stands during a ninth-inning crowd shot:

Pope Leo XIV is truly a die-hard White Sox fan, as he looked as nervous as anyone watching his team try to close out Game 1 of the 2005 World Series.

History was made Thursday when Pope Leo XIV, Robert Prevost, was revealed as the first American pope in the history of the Catholic Church, but even more interesting was when sports fans found out which team the pope supports above all else.