Nadal looked better in his second round victory over Karen Khachanov, winning by a 6-3, 6-3 scoreline while avenging a loss to American John Isner from last week's Laver Cup, taking out the big-serving Isner 6-4, 7-6 (0) in the quarterfinals.
"Something came to my eye, that's all", said Nadal, who is chasing a sixth title this year. I think on return I did well. "It was bothering me for a while". In the ensuing tie-breaker, Nadal with some relentless back-court hitting, did not give Isner a semblance of a chance. "He's playing well", Nadal said after his quarter-final encounter on Friday. "We go on court and we try our best and we want to win". "I played very well, changing good directions... He's a great guy". He was leading 6-3, 3-0 when his opponent Steve Darcis of Belgium retired with a shoulder problem.
Second seed Zverev, meanwhile, beat Russia's Andrey Rublev 6-2, 6-3.
I'm in the best form of my career, says Kane
Azerbaijan, who have won only three of their nine games and lie fifth in the group, are not expected to cause them any problems. We want to learn from the game and don't want to waste that opportunity'. "At the moment they just need the chance to grow".
She will now have an opportunity to avenge her French Open final defeat to Jelena Ostapenko after the Latvian defeated Romania's Sorana Cirstea 6-4, 6-4. Halep, 26, could potentially usurp Muguruza at the top if she reaches the final in Beijing, although current number three Elina Svitolina is also in the mix.
The 22-year-old Kyrgios and Nadal will meet for the fifth time, each winning twice in their careers.
World number one Rafael Nadal responded to a simmering debate about the amount of tennis the top stars play, saying: "We are not 20 years old any more".
In the women's draw, france's Carolina Garcia has surprised the Ukrainian Elina Svitolina, no. 3, 6-7 (5), 7-5, 7-6 (6) during a match of almost three and a half hours.