Johanna Konta failed to cement her maiden foray into the women's top 100 by slipping to a niggling first-round defeat to China's Shuai Peng at Wimbledon.
The 23-year-old from Eastbourne broke new ground by rising to 96th in the world on Monday, only to lose out 6-4 3-6 6-4 to world number 60 Peng.
British hope Konta had earned outright Wimbledon qualification for the first time, but lost out at the opening hurdle due to a string of unforced errors, becomes the first home player to lose on day one.
Konta surrendered the first set in frustrating fashion, slipping up on a fourth break and set point to hand her Chinese opponent a 6-4 victory.
A host of loose errors gifted Peng the opening set, and the British hope quickly underlined her frustrations by claiming an immediate second-set break.
The Sydney-born Brit levelled the match after fending off a recovery from Peng.
Konta relinquished her serve at the start of the deciding set, only to break back immediately.
Peng broke again then held though, and the 28-year-old, who lost to American Sloane Stephens at the French Open, was thereafter able to cruise to victory.
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