Maria Sharapova was just 7-years-old when her tennis career began in earnest.
In 1994, the Russian national left home and homeland with her father to embark on an intensive all-consuming training regime at a tennis academy in Florida.
She left much behind, not least of which her mother, who for visa reasons couldn't join her daughter in the US for two years.
Sporting zealotry has often come under fire on the basis it's unhealthy when the ones fast-tracked are youngsters.
Equally, you could argue the traumatic deracinating of a young girl has been well worth it. After all, she boasts five tennis Grand Slams and $285 million in endorsements.