US Open champion Sloane Stephens and fifth seed Elina Svitolina were the biggest casualties on the first day of Wimbledon on Monday.
The number four seed, a runner up at Roland Garros last month, looked well off the pace as she went down 6-1, 6-3 to 55th ranked Donna Vekic of Croatia.
She lost her serve six times as Vekic earned a first win over a top five player in six attempts.
It was a second successive first-round loss at Wimbledon for Stephens.
“I had a good training block after the French,” Stephens said. “I did more than I would normally do. I came in here feeling not too bad. I thought I’d have not a great tournament, but I was feeling good about myself, the way I was playing.
“Obviously a bit of confidence coming off of a French Open final, as any player would. But, yeah, just today was unfortunate, unlucky. I played a good player on grass. That’s tough. Sometimes that happens.”
Sloane Stephens’ last five Grand Slam results:
— Ben Rothenberg (@BenRothenberg) July 2, 2018
Ukrainian Svitolina, meanwhile, was beaten by Germany’s world number 57 Tatjana Maria.
Maria won in three sets, 6-7 (3-7), 6-4, 6-1 in a late-night finish to record a first victory over a top five player.
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