Roger Federer is now a billionaire, but he's made more money investing in this one company than winning 20 Grand Slams.

The article focuses on Roger Federer becoming a billionaire, with an estimated net worth of $1.3 billion, largely attributed to lucrative brand partnerships rather than his tennis prize money. Despite earning $130.6 million from his 24-year tennis career, Federer's wealth has significantly increased through deals with companies like Rolex, Mercedes-Benz, and Uniqlo, the latter of which is a $300 million partnership over ten years. Additionally, his investment in the Swiss shoe company On has proven profitable, with his stake now valued at around $500 million. The article also discusses the trend of athletes leveraging their fame for financial gain, highlighting that Federer joins other sports icons like Tiger Woods and LeBron James in the billionaire club. [Extracted from the article]