Barbora Krejcikova reached her first Grand Slam quarter-final at the French Open on Monday but only after locking herself in the physiotherapist’s office, thinking she didn’t want to play. 

Krejcikova, ranked 33 in the world, defeated America’s Sloane Stephens, the 2018 runner-up in Paris, 6-2, 6-0 to record a ninth successive win on the tour having arrived in Paris on the back of a maiden singles title in Strasbourg.