Naomi Osaka reaches Australian Open third round after defeating Karolína Muchová in three sets

Down a set against Karolína Muchová and staring at a second-round exit, Naomi Osaka gave herself some simple advice as she fought keep her Australian Open tilt on track.

“I told myself to just swing, because that’s my game,” recounted Osaka.

“I can’t be hesitant and allow her to push me around…