When will we see a female billionaire athlete?

Four sportsmen have reached 10 figures according to financial magazine Forbes.However the wealthiest sportswoman, tennis star Serena Williams, could triple her wealth and not get there.We speak to agent Stuart Duguid, who looks after four-time Grand Slam winner Naomi Osaka, who tells us how elite sportswomen are investing their money and what barriers there are to growing their fortunes.We ask if, and when it might happen, and what that would mean for women’s sport.Presenter: Sam Fenwick Producer: Matt Lines(Serena Williams playing in the 2022 US Open. Credit: Al Bello/Getty Images)