US Open 2018: Soaring temperature and humidity beat players

Five men had to retire from US Open as temperature soared up close to 38 degree celsius in New York. Novak Djokovic, who remains the prime threat to defending champion Rafael Nadal, after his match against Marton Fucsovics said that both him and his Hungarian opponent struggled due to the sweltering heat. He said that the 10-minute break after the third set, which has been introduced in the tournament for the first time, was a relief for both the men in the court as they had ice baths. Novak Djokovic regularly used ice towels during the match. (Source: AP)

Anhelina Kalinina of Ukraine also struggled dealing with the extreme heat while playing Sloane Stephens of the USA in a second round match on day three of the 2018 US Open tennis tournament. (Source:USA TODAY Sport)

Andy Murray of the United Kingdom copes with the extreme heat after losing the first set to Fernando Verdasco of Spain in a second round match on day three of the 2018 US Open.(Source: USA Today Sports)

Roger Federer's campaign at the 2018 US Open ended as the Swiss went down 3-6 7-5 7-6(7) 7-6(3) against John Millman. Commenting on the soaring temperature after his fourth-round defeat, Federer said, "It was just one of those nights where I guess I felt I couldn't get air. There was no circulation at all. I don't know, for some reason I just struggled in the conditions tonight. It's one of the first times it's happened to me." (AP Photo)

Maria Sharapova wears a vest over her shoulders as she sits during a changeover in her match against Carla Suarez Navarro, of Spain, during the fourth round of the US Open tennis tournament. Navarro reached the quarter-final of the 2018 US Open after clinching a 6-4, 6-3 victory over the 2006 champion. (AP Photo)

Naomi Osaka, of Japan, wipes her face during a changeover against Aryna Sabalenka, of Belarus, during the fourth round of the US Open tennis tournament. (AP Photo)