Makarova upsets Kerber to advance in Cincinnati

Kyrgios will play the victor of the quarter-final between world No.1 Rafael Nadal and fellow Spaniard Albert Ramos Vinolas later on Friday.

She broke in each set to secure a clash with Italian Camila Giorgi, who overcame Dario Gavrilova 7-6 (7-1) 5-7 6-3.

Nadal and Kyrgios will be back on court after 2am and you can see it all on Sky Sports Action.

Sixth seed Caroline Wozniacki enjoyed a comfortable 6-2 6-4 win over Elena Vesnina, and number eight Svetlana Kuznetsova beat Yulia Putintseva 6-3 6-4.

"And now another very, very hard match", Nadal said as he left the court. "I don't have words to say". After an evenly contested first set with little between the pair it was Nadal who claimed the tie-break as Ramos-Vinolas folded and picked up just a solitary point.

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In the first of the quarter-finals Grigor Dimitrov continued his quest for a first Masters title by steamrolling Japan's Yuichi Sugita in less than an hour to reach the Western & Southern semi-finals for a second successive year.

John Isner reached the semifinals, beating wild-card Jared Donaldson 7-6 (4), 7-5.

Makarova will go head-to-head with Stephens in the last 16 after the American dispatched two-time Wimbledon champion 6-2 6-3. The match went 2 hours, 45 minutes — her longest of the tournament.

"I'm not playing my best tennis, but winning when I'm not playing good is a plus for me", Halep said. "I think we both played very well, especially in the third set". So I knew that it would be very tough match. "For sure, even if I didn't win a tournament, I'm very happy that I'm getting deep into the tournament".

Muguruza's win came less than 24 hours after she spent 2 hours, 18 minutes on the court and fought off three match points to beat Madison Keys in the round of 16. The straight-sets win was her second in two matches, but it hadn't been as easy as it looked, she said. "But I'm so happy that I got through this tough one".

  • Tabitha Byrd