The tennis legend is now reportedly a billionaire and joins the likes of LeBron James and Lionel Messi, who have leveraged their success in their respective sport to the next level. According to Forbes, Federer's net worth boost is due to the "significant minority stake in publicly traded Swiss shoe and apparel brand On."

After over three years of retirement, tennis legend Roger Federer continues to make headlines and records as he officially joined an ultra-exclusive club, becoming only the seventh athlete to amass a net worth of $1.1 billion, according to Forbes. Federer retired in 2022.