Two-time Grand Slam champion Simona Halep avoided becoming the latest big casualty at the Australian Open when she beat Kazakhstan's Yulia Putintseva to reach the last 16 on Saturday.
The fourth seed won 6-1, 6-4 and plays Belgian 16th seed Elise Mertens or world number 600 CiCi Bellis of the United States next in Melbourne.
Serena Williams and reigning champion Naomi Osaka both lost on Friday and second seed Karolina Pliskova followed them out the exit door on Saturday.
But the 28-year-old Halep, last year's winner at Wimbledon, said: "I am not focusing on other players, just on myself. At this level, every match is really tough."