Australian Open 2018: Simona Halep beats wildcard Destanee Aiava

Simona Halep reached the Australian Open quarter-finals in 2014 and 2015

World number one Simona Halep fended off teenage wildcard Destanee Aiava to reach the Australian Open second round.

Halep saved two set points before beating the 17-year-old Australian 7-6 (7-5) 6-1 after medical timeouts for both players.

The Romanian, who plays Eugenie Bouchard next, had her ankle strapped in the second set, while Aiava left the court when leading 5-2 in the first.

Petra Kvitova was knocked out by Andrea Petkovic after an 88-minute final set.

The Czech 27th seed twice served for the match, at 6-5 and 8-7, while Petkovic could not convert three match points when serving for the match herself at 5-4.

However, a Kvitova double fault eventually handed victory to the 30-year-old German, 6-3 4-6 10-8.

Reigning Wimbledon champion Garbine Muguruza, seeded third, brushed aside her recent injury problems as she beat Jessika Ponchet 6-4 6-3 to book a second-round meeting with Su-Wei Hsieh of Taiwan.

Sixth seed Karolina Pliskova progressed with a 6-3 6-4 win over Paraguay's Veronica Cepede Royg on Rod Laver Arena.

Angelique Kerber, the 2016 champion, made it 10 singles wins in a row this year by seeing off fellow German Anna-Lena Friedsam 6-0 6-4. She will face Croatia's Donna Vekic in the next round.

French eighth seed Carolina Garcia beat Germany's Carina Witthoeft 7-5 6-3 and will face Czech Marketa Vondrousova next.

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• Sharapova through on Melbourne return

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