Marta Kostyuk was out of tennis patience. She found it in her hardest moments

Ukrainian tennis player Marta Kostyuk, 23, revealed she nearly quit the sport last December after losing an exhibition match to compatriot Elina Svitolina in India, telling her coach Sandra Zaniewska she would consider retiring if she didn't improve. At the time ranked No. 26, Kostyuk described hitting 'rock bottom' amid years of emotional struggles. Within five months, she rebounded dramatically by winning both the Rouen Open and the WTA 1000 Madrid Open, tripling her career total of WTA titles.