Hsieh upstaged the likes of 2019 US Open champion Bianca Andreescu en route to the quarterfinals, but the veteran was overpowered by Japanese star Osaka in Melbourne on Tuesday.
Three-time Grand Slam champion Osaka dominated from the outset, especially on serve – losing just two points on her first serve, as the third seed awaits record-chasing Serena Williams or Simona Halep in the final four at Melbourne Park.
Australian Open: Osaka saves match points in great escape against Muguruza
Osaka emerged from the jaws of defeat in the last 16, saving a pair of match points to claim an improbable victory against last year’s runner-up Garbine Muguruza.
And Osaka was a woman on a mission in sunny and warm conditions on Rod Laver Arena, where the 23-year-old broke for an early 3-1 lead.
Hsieh – the oldest player in the Open Era to make her grand slam quarter-final debut, aged 35 – had the chance to break back immediately, but Osaka held firm after fending off a pair to consolidate.
Osaka, who has gone on to win the title each time she has reached the quarter-finals of a major – beating Hsieh en route to the 2019 Australian Open crown, had another two break points saved but she still cruised in the first set.
It was a powerful but disciplined performance from Osaka, particularly on serve as she won 100 per cent of her points on first serve (12 of 12) against a helpless Hsieh.
The second set followed a similar theme – Osaka maintaining her dominance as she raced out to a 3-0 lead.
Osaka never relinquished the break, closing out the match on Hsieh’s serve, with the six-time WTA Tour champion improving to 4-0 in quarter-final matches at slams, and 2-0 at the Australian Open.
Data Slam: Osaka extends streak Eyeing a second Australian Open trophy, Osaka has now won 19 consecutive matches, dating back to February last year following the Tour’s resumption amid the coronavirus pandemic. She last lost while on Fed Cup duty with Japan.
WINNERS/UNFORCED ERRORS Osaka – 24/14 Hsieh – 14/23
ACES/DOUBLE FAULTS Osaka – 7/1 Hsieh – 0/3
BREAK POINTS WON Osaka – 4/12 Hsieh – 0/3
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