Slovenian tennis pro Dalila Jakupovic was forced to quit her qualifying match at the Australian Open on Tuesday ... after she coughed and collapsed to the court due to the air quality.
Of course, the air in Melbourne is currently considered "the worst in the world" as smoke from the wildfires has taken over the area.
Despite the chief health officer saying the air was very poor or hazardous, the qualifying round of the tournament kicked off on Tuesday ... and several players have complained about the conditions already.
Jakupovic was in the middle of the second set of her match against Stefanie Vogele when she started coughing uncontrollably and went to her knees.