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.

Jerry Reinsdorf will have the option to sell his controlling interest in the Chicago White Sox to Justin Ishbia from 2029 to 2033.

Billionaire Justin Ishbia and Chicago White Sox owner Jerry Reinsdorf have reached a long-term investment agreement that establishes a framework for Ishbia to obtain a future controlling interest in the franchise,