KNOW MORE: Ostapenko completes a morning of surprises after beating Gauff
The 33-year-old player from Minsk, once number one in the world, it took two hours and 42 minutes to carry out the commitment against an opponent with whom he had never played before.
KNOW MORE: Korda-Khachanov, first quarterfinals
Azarenka, twice champion of the Australian Open, in 2012 and 2013, will seek the semifinals with the American Jessica Pegula, third favorite, who beat the Czech Barbora Krejcikova 7-5, 6-2.
The entrance Azarenka overcomes Zhu and returns to the quarterfinals was first published on newspaper TODAY.
