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

• Tennis legend Roger Federer is the newest member of the billionaires club, with a $1.3 billion net worth. However, despite winning 20 Grand Slams, his prize earnings make up just a fraction of his wealth. Federer’s longtime brand deals with Rolex and Mercedes-Benz—as well as newfound partnerships with Uniqlo and investment in Swiss shoe company On—have made his bank account skyrocket.

Roger Federer is most known for being one of the most decorated players in men’s tennis...