The Australian Open has defended its decision not to close the roof on Saturday in the women’s final between Caroline Wozniacki and Simona Halep, despite Halep reportedly spending four hours overnight in a Melbourne hospital with dehydration.

On Sunday ESPN showed a photo of Halep apparently lying in a hospital bed during the men’s final for which the roof was closed because the wet bulb globe temperature, which combines temperature with humidity, passed the threshold to invoke the tournament’s heat rule. Halep needed the intervention of the doctor during her 7-6, 3-6, 6-4 defeat by Wozniacki.

Though the referee has ultimate discretion on whether to close the roof, Tennis Australia said the threshold was not reached for the women’s final, though the players were given a 10-minute break at the end of the second set.

Halep and her agent were unavailable for comment on Sunday having already boarded their flights out of Melbourne.