Maria Sharapova [Source: wwos.nine]

Maria Sharapova is not sure if she will be at the Australian Open next year, with a first-round exit meaning she is set to drop out of the world’s top 350.

The five-time Grand Slam champion, who won at Melbourne Park in 2008, lost 6-3 6-4 to Croatian 19th seed Donna Vekic.

It was only the Russian’s second competitive outing since September’s US Open because of a shoulder injury.

Rafael Nadal through

World number one Rafael Nadal cruised into the Australian Open second round with a straightforward victory over Bolivia’s Hugo Dellien.

Nadal, champion in Melbourne in 2009, dropped just five games in a 6-2 6-3 6-0 win over his 72nd-ranked opponent.

The Spaniard, runner-up to Novak Djokovic last year, is bidding to equal Roger Federer’s record of 20 Grand Slam men’s singles titles.

Halep, Pliskova, Muguruza through to round two

Wimbledon champion Simona Halep had to save three set points in the first set but eventually came through 7-6 (7-5) 6-1 against American Jennifer Brady.

Romanian Halep, who had her right wrist strapped after a fall in the first set, raced through the second set in 27 minutes after the opener took 69 minutes.

Halep, Pliskova, Muguruza through to round two

World number two Karolina Pliskova easily won the first set before having to work hard in the second as she beat Kristina Mladenovic to reach the second round.

The Czech took the opener in just 25 minutes on her way to a 6-1 7-5 win.

It was a tricky draw for the second seed, with Mladenovic a former top-10 player who helped France win the Fed Cup in November.

Pliskova is unbeaten in 2020, winning the Brisbane International this month.

“We had some good matches in the past and it was tough mentally in the second set,” said Pliskova, who had shared a 2-2 record against Mladenovic before this match.

In the next round, the 27-year-old will play German world number 72 Laura Siegemund.

Pliskova, chasing a first Grand Slam title, is joined in the second round by Swiss sixth seed Belinda Bencic, Dutch ninth seed Kiki Bertens, American 10th seed Madison Keys and Greek 22nd seed Maria Sakkari, but British 12th seed Johanna Konta was knocked out.

Two-time Grand Slam champion Garbine Muguruza fought back from a dreadful first set to beat American Shelby Rogers 0-6 6-1 6-0 and 2016 champion Angelique Kerber of Germany saw off Italian qualifier Elisabetta Cocciaretto 6-2 6-2.

American 26th seed Danielle Collins, a surprise semi-finalist in Melbourne last year, overcame Vitalia Diatchenko 6-1 3-6 6-4.

Czech 15th seed Marketa Vondrousova, a finalist at last year’s French Open, lost 6-2 4-6 6-4 to Russian 34-year-old Svetlana Kuznetsova, while American 18-year-old Amanda Anisimova fell 6-3 4-6 6-3 to Kazakhstan’s Zarina Diyas.

Catherine Bellis, playing at her first Grand Slam in two years, breezed past Germany’s Tatjana Maria 6-0 6-2.

American Bellis, who has fallen to 600 in the rankings, was told she may have to quit tennis after struggling with wrist and elbow injuries.

She had four surgeries in 2018 on her wrist, arm and elbow and only returned to the WTA Tour in November 2019.