The interruption of Jannik Sinner's match and the decision to close the retractable roof just when the Italian had collapsed due to the extreme heat, suffering severe cramps, has sparked a big controversy among fans. The truth is that there is an established protocol to determine when this action is necessary, and it was carried out in a coordinated and simultaneous manner on the other courts.
There is a scale that considers the temperature, humidity, and heat index in the environment. When the reading reaches 5, the chair umpires are alerted and must stop play and close the roof on the courts equipped with it. This is what happened with the score at 3-1 in favor of Spizzirri in the third set.

This news is an automatic translation. You can read the original news, Así es la norma de calor extremo que ha salvado a Sinner en Australia

