20-year-old Japanese Naomi Osaka has become the first ever Japanese to make the semifinals of a Premier Mandatory as she convincingly beat Karolina Pliskova to reach the last four in Indian Wells on Thursday.
The world number 44, in what was her second career top 5 win, thrashed Czech’s Pliskova 6-2, 6-3 to set up a semifinal clash with world number one Simona Halep.
Romania’s Halep outlasted Petra Martic 6-4, 7-6, 6-3 after two hours and 24 minutes to remain on course for a second Indian Wells title.
Halep, who won the title in the Californian desert in 2015, has lost just one match this season – the defeat by Caroline Wozniacki in the Australian Open final – and underlined her all-court game with a strong service display and broke Martic’s serve nine times.
Germany’s Angelique Kerber was as ruthless as Bismarck, firing her way into the quarterfinals with a comfortable 6-1, 6-1 win over Frenchwoman Caroline Garcia.
Kerber will square off against Russia’s Daria Kasatkina for a place in the last four.
In the men’s draw, Roger Federer strolled into the Indian Wells Masters quarter-final with a 7-5, 6-4 victory over unseeded Frenchman Jeremy Chardy.
The Swiss great, who’s yet to lose a single match this year, will face South Korea’s sensation, Hyeon Chung in the quarters.
Chung defeated 30th seeded Pablo Cuevas 6-1, 6-3.
In the other matches, Borna Coric claimed a 6-2 6-7(6-8) 6-4 victory over American home favourite Taylor Fritz in windy conditions, while South Africa’s Kevin Anderson came back from a set down to beat Pablo Carreno 4-6, 6-3, 7-6.
Juan Martin del Porto continued his fine run of form with a 3-6, 7-6, 6-3 over Leonardo Mayer.