TOKYO (AP) — Sam Stosur knocked two-time champion Maria Sharapova out of the Pan Pacific Open on Thursday, reaching the semifinals with a 6-4, 7-6 (10) victory over the Russian.
Stosur broke Sharapova to go up 5-3 in the second set but then lost nine straight points as the Russian sent the match to a tiebreaker, which Stosur won on her fifth match point when Sharapova returned long.
"I knew that I had lost nine points and was just trying to stop the momentum swing," Stosur said. "I wasn't thinking about the points I lost but was focusing on how I was going to make the next points."
Top-ranked Victoria Azarenka withdrew after a bout of dizziness in her third-round match on Wednesday, sending Angelique Kerber of Germany to the semifinals.
"Before the tournament on Sunday I was starting to feel not really good," Azarenka said. "I haven't really been doing better since then. Just low energy, you could tell by the matches I wasn't my usual self. But it took too much energy over the last two matches to really push and today it's just not really possible for me."