Roger Federe in action during a match. File
Having beaten long-time rival Rafael Nadal in an exhibition match in Cape Town in February, in front of a record crowd of 52,000, Federer has not played since knee surgery at the end of that month.
He had another procedure on his right knee in June but hopes to return in 2021 even though he will turn 40 in August next year.
"I want to come back healthy. We'll see how long that lasts," he told German weekly newspaper Die Zeit.
The Swiss ace says he has missed tennis more than ever since the coronavirus pandemic first hit and forced a shutdown of the sport in March.
"In the beginning it wasn't like that," he said. "There was nothing we could do anyway, we were just especially glad that we weren't ill and that all our friends and family were doing well. "But now I miss it, I'd love to be in a full stadium again."
After a career which has yielded eight Wimbledon titles in a total of 20 Grand Slams, the last of which was the 2018 Australian Open, Federer knows his career is drawing to a close.
"I'm going miss it when I retire," he added, but hoping fans will eventually be allowed to watch live tennis in stadiums again, despite COVID-19.
"It'll come back. We just have to be patient now."
Recently, Federer finished above Lionel Messi and Cristiano Ronaldo to become the highest-earning athlete of 2019, according to Forbes.
"Maybe it's good for tennis that we can compete" with other sports, said Federer, who Forbes claim earned $106 million last year, mostly through endorsements.
"But I'm rather embarrassed when it's in the papers," admitted Federer.
This week was scheduled to be the second week of Wimbledon, where Federer has won a record eight men's singles titles, but the tournament was cancelled for the first time since World War II due to the coronavirus pandemic.
"It is with great regret that the main board ... have today decided that The Championships 2020 will be cancelled due to public health concerns linked to the coronavirus epidemic," the AELTC said in a statement.
"The 134th Championships will instead be staged from June 28 to July 11, 2021."
Nadal emerged triumphant that day, winning in five sets in a four-hour 48-minute epic of fluctuating fortunes that stretched out over seven hours because of constant, momentum-shifting rain interruptions.
The announcement comes in line with the objectives of Dubai Vision 2021, which aims to strengthen Dubai's position as a preferred place to live and work.
This series is being played under special protocols because of the global coronavirus outbreak, with the PCB statement adding the decision to isolate Hafeez had been taken "for his and, the safety and security of everyone around him."
The UAE is set to add another feather to its cap by hosting the cricket’s biggest extravaganza – Indian Premier League (IPL) – at the time of the pandemic after the clearance by the Indian government.