Novak Djokovic out in US Open 1st round for the first time. Pegula, Medvedev, Kostyuk among winners

The U.S. Open’s Sunday start gives some players a chance to get a nice head start

Novak Djokovic out in US Open 1st round for the first time. Pegula, Medvedev, Kostyuk among winners  AP News

The four-time champion in New York battles his opponent and his body for nearly five hours but is beaten in five hours by Argentina's Mariano Navone

Djokovic's lost his first round match at a grand slam for the first time since 2006

NEW YORK, Aug 30 : Novak Djokovic's bid for a record 25th Grand Slam crown ended in a shock 7-6(5) 5-7 4-6 6-2 6-1 defeat by unseeded Argentine Mariano Navone in a gruelling first-round clash on Sunday.Djokovic arrived for his 20th appearance at the Grand Slam with questions over his form and fitness after losing to Th

For the first time in 20 years, Djokovic has been bounced in the first round of a Grand Slam.

Novak Djokovic was upset in the first round, 6-7, 7-5, 6-4, 2-6, 1-6, by the 25-year-old Mariano Navone at Arthur Ashe Stadium on Sunday night.

Novak Djokovic upset by Mariano Navone in US Open 1st round  ESPN

Novak Djokovic Stunned In 1st Round At U.S. Open After Battling Stomach Trouble  Forbes

Jessica Pegula was one of the first players to compete at the U.S. Open, and she learned last year that starting Sunday provided some nice relief.