It was almost inevitable. But as the concerned person is Roger Federer, there was slight hope. But he could not win this particular match. His hope that Rafael Nadal will appear for Spain's Davis Cup semi final against United States next week lost.
The Spaniard says his knee injury will keep him out of the court for at least another two months.
This also makes his appearance in the ATP World Tour Finals in London doubtful, effectively ending his 2012 season.
He will get just a little more than a month to prepare for the Australian Open in January.
"I really want to be back competing and enjoying the tennis tour," he said on Monday,
But the eleven-time Grand Slam champion said, "I have many years in front of me and my knee needs some rest. I will be back when I have no pain and am able to compete. I feel better after the meeting with my doctors and happy knowing that the evolution of the past weeks has been positive and surgery has been avoided.
"I will continue to work with the plan my doctors have established to be able to compete as soon as possible in the right conditions."