Britain's Johanna Konta has progressed into the US Open third round, despite suffering a health scare during her 6-2 5-7 6-2 win against Bulgaria's Tsvetana Pironkova. The 13th seed at Flushing Meadows collapsed on court with blurred vision and breathing issues towards the end of the second set before recovering to win the match.

Konta dominated the early stages and after winning the first set in a comfortable fashion, she started to experience breathing problems. Indeed, as a closely-contested second set reached its conclusion, the Briton crouched down to her knees and seemed to be hyperventilating.

After several minutes, medical staff arrived on court and started treating Konta, with fans wondering whether she would need to forfeit the match. However, in spite of going on to lose the second set, Konta recovered her form to seal her progression into the next round.

"It felt like my whole body was going into shock," Konta subsequently explained, according to the BBC. Konta will play Belinda Bencic - the 24th seed - in the third round on Friday (2 September).