The eighth-seeded Pole has now won 22 consecutive sets at Roland Garros going into her clash with Greek 17th seed Maria Sakkari as she bids to become the first woman to retain the Roland Garros title since Justine Henin in 2007.
Against an 18-year-old opponent who threw everything at her, Swiatek kept her composure on an empty court Philippe Chatrier, with fans not allowed to attend due to Paris's 9pm COVID-19 curfew.
"There were so many differences (from a day match)," said Swiatek.
"It was hard for me to adapt. The light are really bright and I had to adjust, sometimes I was facing the lights when I had to smash, it was hard."
☺️Into the quaterfinal after challenging match in night session. The journey continues and I'm so happy that you -… https://t.co/kmJw66JJSC— Iga Świątek (@iga_swiatek) 1623103046000
Source : https://timesofindia.indiatimes.com/sports/tennis/french-open/defending-champion-iga-swiatek-holds-off-kostyuk-to-reach-french-open-quarterfinals/articleshow/83328672.cms166