Fedex, Djoker off to flying start

| | New York

Novak Djokovic suffered in sweltering US Open conditions but held on to reach the second round with a 6-3, 3-6, 6-4, 6-0 victory over Hungarian Marton Fucsovics.

The Wimbledon champion, playing his first match on Athur Ashe Stadium since falling to Stan Wawrinka in the 2016 final, received a brutal welcome back as soaring temperatures and suffocating humidity prompted organizers to offer the men a 10-minute mid-match heat break for the first time ever.

"We obviously both struggled, you could see that, you could feel that, especially (over) two and a half sets, three sets," said Djokovic, who called trainers who enveloped him in ice packed towels during a change over late in the second set.

After a rocky start to 2018 he claimed his 13th Grand Slam title at Wimbledon. His Cincinnati Masters victory over Roger Federer stamped him a US Open favorite along with defending champion Rafael Nadal, despite his modest sixth seeding.

Federer, the second seed, was to launch his quest for a sixth US Open title — and a first since 2008 —not under the blazing sun but under the floodlights on Ashe against Japan's Yoshihito Nishioka.

He headlined a night session that also featured 2017 women's runner-up Madison Keys taking on France's Pauline Parmentier on Ashe, while over on Armstrong, Maria Sharapova launched her latest bid to revive her Grand Slam career against Switzerland's Patty Schnyder, out of retirement and, at 39, the oldest player to qualify for a Grand Slam main draw.

Mercurial Australian Nick Kyrgios, the 14th seed, will be in action on Armstrong, taking on Moldovan qualifier Radu Albot with a possible third-round meeting with Federer in the offing.

Australian Open champion Caroline Wozniacki played in the heat of the day, but the weather oppressing so many seemed to suit the Dane as she defeated 2011 champion Samantha Stosur 6-3, 6-2.

While Wozniacki got by with the help of eight double faults from Stosur and "trying to think cool thoughts," for France's Alize Cornet the steamy conditions were a "nightmare".

Jelena Ostapenko, the 2017 French Open champion seeded 10th, said the 10-minute heat break helped her in a 4-6, 6-3, 6-2 over Germany's Andrea Petkovic.