The disparity began in March, as Federer was already on the sidelines recovering from knee surgery.
The first day of the French Open on Sunday marked the regular place on the tennis calendar – in March, although it was rescheduled for September – and another Grand Slam, Wimbledon, was announced in July.
“I am happy with my body now and I still believe that the return of this tour is far away,” the 38-year-old continued. “And I think it’s emotionally important to enjoy this break, playing so much tennis.
“I think I’ll be very excited as I move forward and aim for training.”
“Most of the time we train, then nobody,” said the men’s record 20-time Grand Slam champion. “Of course it’s possible for us to play without fans. But on the other hand, I really expect the circuit to return to normal.
“And hold on until the time is right, at least one-third or half of the stadium is full. But it’s very difficult for me to be completely empty when playing a big tournament.”
Nadal has started practicing against Federer, albeit very recently. Sports were in favor of Federer winning the 20th major and tie, and if he had won a record 12 titles at Roland Garros, he could have played the French Open as usual.
The next Grand Slam is scheduled to take place at the US Open in New York in late August, with organizers hoping it will be announced in June.