The World No.1 was one set behind 1-6 and trailing two games to Strykova in the second set when she decided to withdraw after calling the trainer, reports Efe.
"It's very tough; I got a virus in Wuhan. I couldn't perform today," Muguruza, who made 16 unforced errors in the 27-minute first set, said.
"It's the easy way to think: 'don't go on the court'. I want to feel like giving the last chance, going on the court, just hit (a) few balls, see how I'm going to feel, try to turn things around," she added.
In the second round, Strykova is set to play against German Julia Gorges, who defeated American Madison Brengle 6-4, 6-3.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
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Doraiah Chowdary Vundavally is a Software engineer at VTech . He is the news editor of SocialNews.XYZ and Freelance writer-contributes Telugu and English Columns on Films, Politics, and Gossips. He is the primary contributor for South Cinema Section of SocialNews.XYZ. His mission is to help to develop SocialNews.XYZ into a News website that has no bias or judgement towards any.