Japanese star eases into last eight.
Former world number one going well.
Williams finds powerful ally.
Jelena Ostapenko had no problems booking her place in the second round of the Korea Open.
Rafael Nadal won't travel to Asia next month after being advised to rest his troublesome knee.
Talk of Maria Sharapova's retirement is a bit premature.
Naomi Osaka looked every bit the US Open champion.
In Tennis Today, Man United urged to follow Federer's lead.
Jan-Lennard Struff saw off the challenge of Andrey Rublev to book a clash with Dominic Thiem.
Jo-Wilfried Tsonga finally made his long-awaited comeback following injury.