If you're a fan of on-court tennis tantrums, you'll go bananas for this doozy from Coco Vandeweghe.
Her sorry showing completed a awful 1-9 sweep against American women on day one, with Nicole Gibbs the only USA victor on Monday.
A miserable day session for America saw US Open champion Sloane Stephens, seven-times Grand Slam victor Venus Williams, men's 16th seed John Isner and eighth seed Jack Sock, the highest ranked US player in the men's draw, exit the tournament.
The seventh-seeded Ostapenko is playing her third Australian Open - she advanced to the third round at Melbourne Park previous year.
In one of his best performances the 30-year-old hit 38 winners and 13 unforced errors. Schiavone was playing in the Australian Open main draw for the 17th time.
The first Grand Slam of the year begins under partly cloudy skies with a slight chance of rain and a temperature of 19 Celsius (66 Fahrenheit).
"It's never against my opponent, it was never to her face, it was to my box or when it was an incredible point it was to the crowd".
Seven-time Grand Slam singles champion Venus Williams plays Belinda Bencic in the second match at Rod Laver Arena, and top-seeded Rafael Nadal plays the first evening match when he takes on Victor Estrella Burgos.
Vandeweghe claimed in her post-match press conference that Babos had been very "in your face with her c'mons", but the Hungarian insisted it wasn't personal.
Williams is one of many American stars to be eliminated on day one of the tournament. The age gap between 20-year-old Ostapenko and 37-year-old Schiavone, the 2010 French Open victor, was the biggest of any in the first round at Melbourne Park.
Julia Goerges has extended her winning streak to 15 matches, beating Sofia Kenin 6-4, 6-4 in the first round at the Australian Open.
Taylor Townsend lost 6-0 7-5 to Magdalena Rybarikova.
Vandeweghe crashed out 6-7, 2-6, joining fellow American big guns Venus Williams and Sloane Stephens as shock losers.
Coco Vandeweghe lost 7-6 6-2 to Timea Babos. She then had a conversation with chair umpire Fergus Murphy about why she wasn't ready to play. "How are they not on the court? I mean, that's not my fault", she was heard saying in a Yahoo Sports video to the umpire.
"Even after the first set she was sitting for 10 minutes and I didn't know what was happening but I tried to stay focused and not to buy the big things happening around (Vandeweghe)". I don't have to make myself uncomfortable because it's ill prepared. "I'm insane on court but not in a negative way".
Vandeweghe eventually got her bananas after a 60-second delay, before copping a time violation.
"You're prepared with her - anything can happen". "I played a little bit too careful and safe". Down 5-1 in the second set, Vandeweghe bounced her racquet after losing a point, before hurling some potassium-tinged invective across the court in Babos' direction.