Iga Swiatek is the top women's seed at Wimbledon
World number one Iga Swiatek has pulled out of her semi-final at the Bad Homburg Open because of illness.
Swiatek had reached the last four of a WTA Tour grass-court event for the first time and had been due to play Italian Lucia Bronzetti on Friday.
The 22-year-old from Poland is set to face China's Zhu Lin in the first round at Wimbledon next week.
"I had a restless night because of some fever and possible food poisoning," Swiatek wrote on her Twitter account.
"I'm not able to perform and I need to take care of myself. I hope I'll be fine soon."
Four-time Grand Slam champion Swiatek, who won a third French Open title earlier this month, has never been beyond the fourth round at Wimbledon.
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