MADRID – Naomi Osaka won her opening match in the Madrid Open. Caroline Wozniacki withdrew due to injury, and Garbine Muguruza was upset by Petra Martic in just the same Sunday.
Top rated Osaka, the reigning US Open and Australian Open champion, hit 43 winners, including eight aces, on the outdoor red clay to beat the 2016 finalist Dominika Cibulkova 6-2, 7-6 (6).
"For me, I'm just happy to get through it," Osaka said. "I feel most nervous in the first round and playing against Cibulkova was a bit tough for me, especially on clay."
Osaka will meet Sara Sorribes in the second round after she passed the fellow Spanish wild card Lara Arruabarrena.
A lower back injury forced Wozniacki to retire from his fight with Alize Cornet when she lost 0-3 in the first set.
Martic defeated two-time Grand Slam winner Muguruza 7-5, 7-6 (2), a week after the Croatian won his first career title in Istanbul.
Martic will next face fourth seeded Angelique Kerber, who broke Lesia Tsurenko six times to earn a 6-3, 6-2 victory.
Third seed Simona Halep, who has won twice in Madrid, brushed off the Russian qualification Margarita Gasparyan 6-0, 6-4.
Fifth seed Karolina Pliskova had to fight back from a set down to avert the 18-year-old Ukrainian Dayana Yastremska 5-7, 7-6 (5), 6-3.
Sloane Stephens and Victoria Azarenka also advanced, and Madison Keys lost Sorana Cirstea in three sets.
On the men's side by Rafael Nadal, who his first opponent will be after Felix Auger-Aliassime, who beat Canadian Denis Shapovalov, a semi-finalist last year, 6-2, 7-6 (7).
The 18-year-old Auger-Aliassime has reached the final in Rio and the semifinals in Miami already this year.
Jan-Lennard Struff beat Nick Kyrgios 7-6 (4), 6-4 in a match that saw a combined 21 ace.
(t) TaraTranslate) Tennis (t) Naomi Osaka (t) Simona Halep (t) Garbine Muguruza (t) Petra Martic (t) Dominika Cibulkova Sara Sorribes Tormo (t) Lara Arruabarrena Margarita Gasparyan (t) espnw (t) espnw – sport