World number two Simona Halep clawed her way into the Australian Open third round after fighting back from the brink against Ajla Tomljanovic.
A nervy Tomljanovic failed to serve out the match at 5-3 and Halep showed her experience to secure a remarkable win.
"In the end I think mentally I was a little bit stronger, had the desire to win the match," she said.
In front of a rowdy Margaret Court Arena, Halep cut a frustrated figure, frequently yelling and gesturing at her coach, Darren Cahill.
However, when Tomljanovic faltered at the key moment, the two-time Grand Slam champion forced her way through her opponent's defences and shook her fists in celebration at the end.