The young private equity mogul already has major stakes in three other professional sports teams — and he's building what's thought to be the most expensive home in Illinois history.

Chicago is fresh off the worst season in modern MLB history with a 41-121 record — and things haven’t looked too much better this season either.

Chicago White Sox catcher Kyle Teel on making his MLB debut Friday: “This is a dream come true. I’m trying to soak it all in. … It’s really special.”

In a heartwarming clip posted by the White Sox, Teel called his parents to tell them the good news. He first called his mom, asking her if she had any plans, and — when she said no — telling her she needed to book a flight to Chicago.