Roger Federer has a losing record against his biggest rivals.
Rafael Nadal got him 24 of the 40 times they played and Novak Djokovic won 27 of their 50 clashes. And he has fewer grand slam titles than either of those guys.
As is the case for Serena Williams and her ultimately unsuccessful pursuit of Margaret Court's record 24 major singles titles, Federer's greatness can't be summed up in the cold vacuum of numbers.
