By Shrivathsa Sridhar
Iga Swiatek’s 25th birthday celebrations turned sour at the French Open on Sunday as the former champion lost 7-5 6-1 to Ukrainian 15th seed Marta Kostyuk, her bid for a fifth title ending just when she had looked to be rediscovering her form.
Swiatek’s shock defeat comes amid a chaotic spell at Roland Garros in which men’s world number one Jannik Sinner, 24-times Grand Slam winner Novak
