"But if my career had to end here, well it would be incredible to end it with this award."
The 39-year-old underwent knee surgery in February that kept him out of the clay court season and he eventually announced in June further complications had ruled him out for the rest of 2020.
Even now he admits he is far from 100 per cent fit, despite doing everything in his power to return to his best.
"I didn't have any setbacks since the second operation. I've made constant progress over the last six months," he said.
"I wish I was more ready but at the same time I'm happy where I stand. We had a plan and decided to take as much time as we need ... I'm still not at 100 per cent."
Federer singled out the Australian Open, admitting he is in a race against time for the event, scheduled to begin on February 8.
"It's a race against time for the Australian Open, we will see," he said.
"I'm curious to see whether it will start on February 8. Of course, it would help if I had a bit more time.
"I would have hoped that I would be 100 per cent in October. But I am still not today. It will be tight for the Australian Open."
His speech left tennis commentators fearing the end is coming sooner rather than later.
Federer has played in 22 consecutive Australian Opens. If he does make it to Australia in 2021 it will be without his family as a result of the strict biosecurity protocols and mandatory quarantine all players, staff and officials will undergo when arriving from overseas.
Federer said in July he suffered a "setback" during the rehabilitation from his initial arthroscopic surgery, and would subsequently not return to the court until 2021.
"A few weeks ago, having experienced a setback during my initial rehabilitation, I had to have an additional quick arthroscopic procedure on my right knee," Federer posted to Twitter at the time.
"Now, much like I did leading up to the 2017 season, I plan to take the necessary time to be 100 per cent ready to play at my highest level.
"I will be missing my fans and the tour dearly, but I will look forward to seeing everyone back on tour at the start of the 2021 season."