Seven-time Wimbledon champion Novak Djokovic eased concerns about his knee Tuesday, easily defeating Czech qualifier Vit Kopriva 6-1, 6-2, 6-2 to advance to the second round.
Andy Murray said that his call to not play in the men's singles at Wimbledon was the "right decision" after he failed to return to fitness in time for his first-round match.
Marketa Vondrousova became the first defending women's champion at Wimbledon to lose in the first round the next year since 1994, eliminated 6-4, 6-2 by Jessica Bouzas Maneiro at Centre Court on Tuesday.
Andy Murray withdrew from his first-round match at Wimbledon against Tomas Machac, meaning he has likely played his final singles match at the championships.
Russian tennis players Andrey Rublev, Daria Kasatkina and Anna Kalinskaya declined invitations to compete at the Paris Olympics as neutral athletes, while Daniil Medvedev and Ekaterina Alexandrova have accepted.
No. 3 seed Aryna Sabalenka of Belarus has withdrawn from Wimbledon due to a shoulder injury. Emina Bektas of the U.S., who was due to face Sabalenka, will now play Erika Andreeva.
Andy Murray said "it's impossible" to know yet whether he will be able to compete at Wimbledon, even if he is "feeling better every day" as he recovers from surgery to remove a cyst from his spine.
Novak Djokovic has said he has tested his troublesome knee to the maximum since arriving in London and is confident he will be ready for his opening match at Wimbledon on Tuesday.
Russia's Daria Kasatkina and Taylor Fritz of the U.S. captured the women's and men's singles, respectively, of the Eastbourne International on Saturday.
British hope Emma Raducanu is glad to be back on court after missing Wimbledon last year because of injury and spending much of the tournament in hospitality suites.