Shanghai, Jan 6 (AFP) Former world number one Garbine Muguruza recovered from a slow start to avoid an upset at the Shenzhen Open on Monday.

The 26-year-old Spaniard beat Chinese youngster Wang Xinyu 3-6, 6-3, 6-0 and plays the American Shelby Rogers in round two in southern China.

The Shenzhen Open serves as build-up for the Australian Open at the end of the month.

It was the two-time Grand Slam winner Muguruza's first match since an early exit at the China Open in late September.

"I think it was my first match in a long time and you cannot expect to play your best tennis," said Muguruza, now 35th in the world.

Defending champion Aryna Sabalenka made a fast start to her season, blowing away Russian qualifier Margarita Gasparyan in just 71 minutes.

The world number 11 from Belarus eased to a 6-3, 6-0 victory as she looks to seal a place inside the top 10 for the Australian Open.

The 21-year-old will play Kristyna Pliskova of the Czech Republic next.

"It was a tough match and really tough to start," said the powerful Sabalenka, who won three titles last year in China, including in Shenzhen.

"She's a great player and it was tough to play against her. She has strong strokes. I tried my best and I'm happy I finished with the win."

Gasparyan, 25, reached a career-high 41 in the world in February 2016 but has been beset by injuries. (AFP)

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