Alexander Zverev and Daniil Medvedev go throughHalep and Muguruza win, Pliskova and Bencic crash outEmail Tumaini with your thoughts or tweet @tumcarayol 11.41am GMT
![Australian Open: Nick Kyrgios v Karen Khachanov goes to decider – live!](https://i.guim.co.uk/img/media/7c3babd809fecd7bb11a0c3c606559b28b095efc/247_347_3489_2094/master/3489.jpg?width=1200&height=630&quality=85&auto=format&fit=crop&overlay-align=bottom%2Cleft&overlay-width=100p&overlay-base64=L2ltZy9zdGF0aWMvb3ZlcmxheXMvdGctbGl2ZS5wbmc&enable=upscale&s=8e1bcf606e972e8130691ddf4d92866b)
After a long rally, a Kyrgios forehand flies wide to hand over the set. We’re going to five sets! 11.40am GMT
Nick Kyrgios 6-2 7-6(5) 6-7(6) 6-6 (*7-8) Karen Khachanov. After a solid overhead from Khachanov at 5-5, Nick Kyrgios saved set point at 6-5 to with a service winner. At 6-6, Kyrgios swept into the net after a big forehand, dispatching a forehand volley to bring up match point. Kyrgios dumped a backhand passing shot into the net on set point and Khachanov found an ace to bring up a second set point.