For the second consecutive week, Karolina Pliskova advanced to the semifinals of a tournament by beating Lucie Safarova.
On Thursday at the Dubai Tennis Championships, Pliskova recovered from a set and a service break down to win 3-6, 7-6 (5) 6-1.
The 18-year-old Pliskova, seeded 17th, defeated Safarova in straight sets last week in Antwerp, Belgium. She will next face unseeded Garbine Muguruza in the semifinals.
The 24th-ranked Muguruza beat Carla Suarez Navarro 6-7 (4), 6-3, 6-3.
Suarez Navarro, who withdrew from the final in Antwerp with a neck injury, was the player who defeated Pliskova in last week's semifinals.
"I had three set points in the first set so I was sad," Muguruza said. "I said if I want to win this match I cannot play bad. I knew I would have options to win the match if I won the second set."