Barry Bonds

Bonds commanded historic salaries during his playing career, including a then-record $43.75 million deal with the Giants in 2007. His $22 million average annual salary in his final years dwarfed most contemporary athletes, and unlike many players, he was savvy enough to invest heavily in California real estate during the early 2000s boom. However, the BALCO steroid scandal cost him an estimated $50-100 million in potential endorsement deals from Nike, Coca-Cola, and other major brands who distanced themselves from his pursuit of the home run record.

What's remarkable is how Bonds diversified beyond baseball even during his playing days. He invested in multiple restaurant franchises, a construction company, and various tech startups in Silicon Valley. His memorabilia business remains surprisingly lucrative - signed baseballs from his record-breaking seasons still command $2,000+ at auction, and he's retained ownership of much of his game-worn equipment rather than selling it off immediately like many retired players.

The tragedy is that Bonds should be worth $250+ million given his statistical dominance and San Francisco Bay Area connections during the tech boom. His association with performance-enhancing drugs created a permanent shadow over his legacy that kept major corporate partnerships at bay. Still, his financial discipline and business acumen have maintained his wealth far better than contemporaries like Sammy Sosa or Mark McGwire, proving that even controversial superstars can build lasting fortunes with smart money management.