Daria Gavrilova was planning a junk-food binge after her US Open ended in tears with a shattering first-round loss at Flushing Meadows.

The Australian No.2 was unable to hide her disappointment after falling 6-4 6-4 to 2015 French Open finalist Lucie Safarova on Tuesday.

The junior champion in 2010, Gavrilova is yet to win a match in the pro ranks in New York and couldn’t contain her emotions after letting another opportunity slip.

“I was very nervous,” she said.

“I wasn’t really nervous before the match and I was playing good in the practice and I feel like I dropped down like 30 per cent of my abilities (in the match).

“I didn’t play great at all.”

Striking Safarova, while not seeded after a run with illness, completed a wretched summer run of draws for Gavrilova.

The world No.45 ran into Australian Open runner-up Dominika Cibulkova in the second round at Wimbledon and then drew Serena Williams first up at the Rio Olympics.

“Trained so hard for this and just losing first round sucks,” Gavrilova said.

“But grand slams are like that … so many great players are losing first round.

“And what also frustrates me is that I’ve beaten so many good players before, like top-10 players and stuff, and my ranking is much lower than what I want it to be.

“I have to work on my ranking so I’ve got five or four more tournaments (in Asia this year) and hopefully I’ll be a seed at the Australian Open.”

Gavrilova admitted she was a locker-room mess in the immediate aftermath of her latest grand slam defeat.

“I was very disappointed. I was thinking `oh my god, I need a rest, I’m so fed up.’ I put in so much work before this tournament and it didn’t pay off,” she said.

“But now I’ve cooled down a bit my goal still is to play well at those Asian tournaments and get my ranking up for the Oz Open … to get to 32 in the world as soon as possible to be seeded at the slams so I don’t have an excuse of a tough draw.”

The 22-year-old also lamented not having the Hawkeye replay challenge system on the Old Grandstand Court after copping several questionable line calls.

“It should be fair for everyone, but I guess players played for ages without it before us,” Gavrilova said.

Asked how she planned to digest her bitter defeat, Gavrilova said: “I’m going to eat – something bad.”