NEW YORK (AP) — The rising heat and humidity at the U.S. Open has prompted organizers to adopt a new policy that allows them to partially close the roofs on the main stadiums. Tournament referee Jake Garner told The Associated Press on Tuesday that will help spectators and players. The temperature topped 90 degrees Fahrenheit (32 Celsius) and the humidity was above 50%. The retractable roof above Arthur Ashe Stadium was partly closed ahead of the men’s quarterfinal between Novak Djokovic and Taylor Fritz. The roof on Louis Armstrong Stadium also was pulled part of the way closed after the first set of a women’s doubles quarterfinal with Magda Linette and Bernarda Pera against Jennifer Brady and Luisa Stefani.
