Madison Keys (#17) has a good chance of reaching the semi-finals of this year's Australian Open as her draw has opened up with the early exits of Simona Halep and Venus Williams.
She will meet Zhang Shuai of China (#133) in the fourth round.
This has been her path:
R3: Ana Ivanovic (SRB) (#22) 46 64 64
R2: Yaroslava Shvedova (KAZ) (#70) 67(4) 63 63
R1: Zarina Diyas (KAZ) (#57) 76(1) 61