The news came hours before the unveiling of the draw for the annual ATP Tour event and a day after the withdrawal of Wimbledon champion Novak Djokovic.
Neither pullout was a big surprise. Djokovic isn’t vaccinated against COVID-19 and isn’t allowed to enter Canada while Nadal is still recovering from a muscle tear that forced him to withdraw before his semifinal match at Wimbledon last month.
“I have been practising for a while now without serving and started with serves four days ago. Everything has been going well. However yesterday, after my normal practice, I felt a slight bother on my abdominal and today it was still there,” Nadal said in a statement. “After speaking with my doctor, we prefer to take things in a conservative way and give a few more days before starting to compete.”