Seven-time Wimbledon champion Serena Williams moved into the second round with a 6-2 7-5 straight-set win over Italy’s Giulia Gatto-Monticone on Tuesday.
Williams, the 11th seed, is looking to equal Australian Margaret Court’s all-time record of 24 Grand Slam singles titles but has struggled with a knee injury this year.
World number one Ashleigh Barty and defending champion Angelique Kerber also made it comfortably through.
French Open champion Barty overcame Chinese world number 43 Zheng Saisai 6-4 6-2 and will now play Belgian Alison van Uytvanck.
Kerber saw off fellow German Tatjana Maria 6-4 6-3 and faces American world number 95 Lauren Davis in round two.