Swiss tennis player Roger Federer / Yonhap News Agency

'The King of Tennis,' Roger Federer (44), became the seventh retired athlete to become a billionaire.

According to CNN's report on the 23rd (local time), Federer's net worth is currently estimated at $1.1 billion (approximately 1.5237 trillion won). This increase is attributed to the rise in the value of the equity in the Swiss apparel and running shoe brand 'On,' in which Federer holds about 3%.

Federer was the highest-earning player for 16 consecutive years during his active career. In particular, in 2020, he earned $106.3 million (approximately 147.2 billion won), making him the 'highest-paid athlete in the world' for that year. Holding the record for the most Wimbledon men's singles titles (8), he accumulated enormous income with his on-court reputation and overwhelming performance.

In 2019, he invested in 'On' and participated in design, establishing a collaborative relationship that went beyond a simple sponsorship. Since Federer's investment, 'On' has rapidly grown, listing on the New York Stock Exchange in 2021, resulting in a significant increase in equity value. On running shoes are also gaining popularity among 'running enthusiasts' who enjoy running as a hobby in Korea.

The list of billionaire athletes includes the most basketball players. 'The King of Basketball,' Michael Jordan, along with Magic Johnson, LeBron James, and Junior Bridgeman, have made it onto the billionaire list. Bridgeman, who was not highly paid during his playing days as a sixth man for the Milwaukee Bucks, amassed wealth after retirement through successful ventures in the fast-food business.

Golf star Tiger Woods has also made it onto the billionaire list. LeBron James and Woods are the only active athletes who have become billionaires.

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