Beijing: World number three Daniil Medvedev booked his place in the China Open men’s semi-finals with a 6-4, 3-6, 6-1 victory over France’s Ugo Humbert in Beijing on Monday. An error-strewn first set saw a combined five breaks of serve but Medvedev edged ahead in the ninth game and finished it off with an ace. Both men were more consistent in set two until the Russian, at deuce, hit back-to-back double faults to hand the crucial break to Humbert. But Medvedev finally tightened up in the decider, notching two quickfire breaks before seeing out the match on his serve. The 27-year-old will battle it out with Germany’s Alexander Zverev for a place in the final. Medvedev again attributed the see-saw victory to the match balls, which he has said fluff up too quickly and can lead to lengthy rallies. “It’s very slow,” he told a post-match news conference. “(On) any other normal hard court with normal balls, no chance I win the match like this. No chance I would lose my serve so much,” he said. “It’s great that I managed to still find, in this tough match, these moments of consistency — which was enough to win.” Zverev, ranked number 10, edged a tight encounter with Chilean Nicolas Jarry 6-1, 6-7 (5/7), 6-3. World number two and tournament favourite Carlos Alcaraz is due to play his quarter-final against Casper Ruud on Monday evening. Top-ranked men’s player Novak Djokovic is not playing the China tournaments this season. In the first round of the women’s draw, world number two Iga Swiatek defeated Spain’s Sara Sorribes Tormo in straight sets. The Pole, who recently relinquished her hold on the number-one spot to Aryna Sabalenka, enjoyed considerable success at the net on her way to a 6-4, 6-3 victory. Swiatek will play France’s Varvara Gracheva in the second round. “I feel like I was pretty patient. You have to be patient with her because she’s running for every ball,” the 22-year-old said after the match. “I kind of wanted to just be solid and be intensive but not make too many mistakes with risking,” she said. “I’m pretty happy I could balance that. It just worked, so I’m happy.” Teenage star Coco Gauff survived a minor scare on the way to a 7-5, 6-3 defeat of Russia’s Ekaterina Alexandrova. The US Open champion was 4-0 up but allowed Alexandrova to level before ripping a backhand winner down the line to break serve and take the first set.