Karolina Muchova booked her place in the Miami Open semi-finals for the first time after edging a tightly contested straight-sets victory over rising Canadian teenager Victoria Mboko on Tuesday.
World No. 1 Aryna Sabalenka powered into the Miami Open quarter-finals with a comfortable victory over Zheng Qinwen.
Emma Raducanu has been forced to withdraw from the Miami Open due to illness, still suffering from the effects of a virus contracted earlier this season.
Despite being on the cusp of another Masters title, Elena Rybakina has her eyes on being at the top of women's tennis.
Mirra Andreeva could not hold back the emotions as her defence of the Indian Wells title ended at the third round stage with a 4-6, 7-6(5), 6-3 defeat to Katerina Siniakova.
Novak Djokovic admits playing five sets of tennis is a "whole different animal" than playing three-setters as the debate continues around women playing five sets at grand slams.