Tennis : Martic beats Sabalenka to reach Zhengzhou Open semi-finals

The fourth seeded Petra Martic of Croatia beat seventh seed Belarusian Aryna Sabalenka 7-5, 5-7, 6-4 on Friday to reach the Zhengzhou Open semi-finals where she will face the winner between Elina Svitolina and Kristina Mladenovic.