While active Major League Baseball superstars command historic multi-hundred-million-dollar contracts through playing salaries and global endorsement portfolios, former player Alex Rodriguez is widely recognized as one of the wealthiest baseball figures of all time, amassing a massive fortune through both his playing career earnings and extensive post-retirement business ventures, real estate investments, and corporate ownership groups. Other legendary icons and modern superstars have built staggering multi-million-dollar net worths, though crossing the billionaire threshold typically requires major sports ownership or massive entrepreneurial business success.