Ukrainian tennis player Sergiy Stakhovsky gained fame when he upset Roger Federer at the 2013 Wimbledon Championships. Stakhovsky carved out a solid tennis career that lasted nearly 20 years, and earned more than $5 million in prize money. But after retiring from tennis in 2022, Stakhovsky heard the news that Russia was invading Ukraine, and decided to enlist to help defend his homeland. Reporter Tim Rohan travels to Kyiv to meet Stakhovsky and his family, and hear the story of the professional athlete who ran towards the fight.Wondery Plus subscribers can listen to Sports Explains the World early and ad-free right now. Join Wondery Plus in the Wondery App or on Apple Podcasts.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.