On 22 June 2021, the ITF ruled that Yastremska "bore no fault or negligence" for the positive test result, and announced that her provisional suspension would be lifted with immediate effect. She would serve no period of ineligibility, and would be able to resume competition immediately. Due to the late decision by the ITF, Yastremska was ineligible to compete at Wimbledon; as such, Yastremska returned to the tour at Hamburg. Playing as the top seed, she defeated Magdalena Fręch and Sara Errani, before being defeated by the qualifier and eventual champion Elena-Gabriela Ruse. Her next tournament was at the Tokyo Olympics, where she suffered two first-round defeats: to Leylah Annie Fernandez in the singles event, and, partnering Elina Svitolina, to Alizé Cornet and Fiona Ferro of France in the doubles competition.