How Marta Kostyuk evolved into a Grand Slam contender

PARIS -- Marta Kostyuk will make history Thursday when she becomes the first Ukrainian woman to play in the semifinals at the French Open. A teenage prodigy who made the third round of the Australian Open at just 15 years of age, she struggled with the pressure for many years. But after winning titles in Rouen and Madrid this year, she goes into her clash with Russian Mirra Andreeva on a 17-match winning streak on clay. Here's how she turned herself into a contender for the sport's biggest prizes.