Amid fitness concerns at the US Open, Daniil Medvedev insisted "everything is quite fine".
Austrian second seed Dominic Thiem was too good for Alex de Minaur as he earned a semi-final showdown with Daniil Medvedev.
Despite trailing Serena Williams 18-4 head-to-head, Victoria Azarenka is keen to face the American.
Daniil Medvedev is back into the US Open semi-finals after overcoming compatriot Andrey Rublev.
Serena Williams maintained her latest grand slam challenge, beating Tsvetana Pironkova 4-6 6-3 6-2 in a gripping US Open quarter-final.
Japanese star and 2018 champion Naomi Osaka is making the most of her run at Flushing Meadows, where she is preparing for the semi-finals.
Alexander Zverev responded to Martina Navratilova after facing criticism at the US Open.
Naomi Osaka – the 2018 champion and former world number one – was too good for Shelby Rogers 6-3 6-4 at Flushing Meadows on Tuesday.
Pablo Carreno Busta needed more than four hours to overcome Denis Shapovalov in the US Open quarter-finals.
Borna Coric failed to capitalise on a lightning start as Alexander Zverev booked a place in the US Open semi-finals.