World number one Ashleigh Barty and defending champion Angelique Kerber eased into the second round of Wimbledon on Tuesday.
Unlike second seed Naomi Osaka on Monday, who exited in straight sets, both Barty and Kerber disposed of their opponents with relative ease.
Barty beat China's Zheng Saisai 6-4, 6-2 while Kerber, the fourth seed, beat fellow German Tatjana Maria 6-4, 6-3.
Barty did not have it all her own way in the first set being pegged back to 4-4 after leading 3-0.
Barty finally took the set in breaking Zheng on her serve at 5-4.
The Australian made the break on Zheng's first service game in the second set and was rarely troubled after that.
"The first rond is always very tough and it took a little time to get used to the court," said Barty.
"It definitely took some time to adjust."
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