Largest Contract in Pro Sports History

$765M, 15 years, that's $51M every year for the next fifteen years--that's what Juan Soto, formerly if the New York "Yankees", signed with his new employer, the New York "Mets". 

The wonder is that Major League Baseball exists at all. To be existing and thriving to the extent that one of its member franchises could afford such a sum is beyond my ken.