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
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.