Originally Posted by forehand_dude
But it was a standard part of the culture not to play the AO back then. To make a fair comparison, if Federer had only played one AO he would have 12 majors. If he had only played one AO and also retired at age 26, he would have 9 majors.
11 > 9, so Borg > Federer
Borg chose to retire at 26. His problem.