The Madison Keys-Marketa Vondrousova women’s quarterfinal match was delayed for over eight minutes Wednesday night when a fan in the crowd needed medical attention. 

It was uncertain what exactly took place that required the match at Arthur Ashe Stadium to be delayed.

It was halted at deuce in the opening game with Keys serving.

Medics came to the court to treat the fan.

Earlier in the day, Daniil Medvedev took two medical breaks to deal with the oppressive heat in his victory over Andrey Rublev. 

“One player is going to die and you are going to see,” he could be heard saying to the camera during his quarterfinal win. 

New York City is in the midst of a heat wave, as temperatures have reached the high 90s.