Nigeria, Feb. 16 -- Naomi Osaka, the 2019 Australian Open champion, has advanced to the semifinal of the 2021 edition with a straight two sets victory over Su-Wei Hsieh 6-2 6-2, in just over an hour on the Rod Laver Arena court.

Osaka, 23, broke the unpredictable Hsieh three times in the opening set and dictated play against the 35-year-old, who made the quarterfinals of a Grand Slam for the first time.

Osaka served off seven aces as Hsieh made 23 unforced errors to hand the Japanese world No.2 a trip to the semis and at least a cheque of $850,000.

Speaking after the match, the two-time Grand Slam winner said the score did not totally paint an accurate picture of the battle she had to weather through. "I am definitely really happy with...