Russian impressing the world number one.
No title for Djokovic in Cincinnati.
Naomi Osaka vows to defend US Open trophy.
Nick Kyrgios takes another swipe at Rafael Nadal.
Andy Murray finds out his draw for Winston-Salem Open.
Jamie victorious in battle of Murray brothers.
World No 1 Novak Djokovic is two wins away from successfully defending his Cincinnati title.
Ashleigh Barty is one win away from returning to the top.
Andy Murray says he "chatted a little bit" to Nick Kyrgios.
Barty is a fan of Sakkari and Sakkari is a fan of Barty.