Second seed Simona Halep was rattled by big-hitting Alja Tomljanovic Wednesday, but won five games in a row to survive a major scare and reach the Australian Open third round. The two-time Grand Slam winner was pushed to the brink by the gutsy Australian in a see-saw second round clash before finally prevailing 6-4, 4-6, 7-5 in two hours and 34 minutes. Halep, who lost just three games to Australian wildcard Lizette Cabrera in the first round, rallied from 5-2 down in the third set.

"I was expecting a difficult match but it was more than I thought," she said. "I thought in the end I was mentally stronger, had the desire and didn`t give up." Halep started the match with a break but the feisty, 72-ranked Tomljanovic, buoyed by the bulk of support at Margaret Court Arena, hit back and edged ahead. An angry Halep remonstrated in the direction of her Australian coach Darren Cahill en route to dropping the opening set, but composed herself to hit back and draw level. But Halep couldn`t shake off Tomljanovic, who continued to pounce on the Romanian`s tentative serve and broke in the pivotal sixth game of the decider to sniff an upset.