Daria Kasatkina has booked a Wimbledon date with Naomi Osaka after a two-hours and 37 minutes slugfest victory over Indonesia's Janice Tjen.
Kasatkina, the Australian No.2, won 6-7 (5-7) 6-1 6-4 to become the first Australian into the third round of the grasscourt slam.
Osaka, who beat Anastasia Gasanova 6-3 6-2, may appear a daunting opponent as a four-time grand slam champion, but the former world No.1 has never gone beyond this stage at Wimbledon.
