Why do so many ex-players call Federer their toughest opponent, but Nadal/Djokovic/Murray rarely do?
I recently read an article from an interview with Kevin Anderson. I have also seen other players like John Isner, Sam Querrey say this.
One thing I've always found interesting:
Many former players (outside the Big 3 + Murray) tend to describe Federer as their toughest opponent.
But when you ask Nadal, Djokovic, or even Murray about their toughest rival, they rarely seem to pick Federer. They always point to each other, mostly Nadal or Djokovic. Why is that?
Was Federer uniquely difficult for the rest of the tour. Or am I missing something? #sport