Tennis Australia faced fierce criticism on Tuesday after a player retired with breathing difficulties and others were left "gasping for air" in the opening round of qualifying matches for the Australian Open.<br /><br />Dalila Jakupovic, the world No 180 from Slovenia, was leading her match 6-4, 5-6 when she fell to her knees and told officials that she could no longer continue.<br /><br />The air quality index in Melbourne on Tuesday morning was over 200 – meaning hazardous – as smoke from bushfires raging across the country blanketed Melbourne in a thick, grey haze.
