Originally Posted by BreakPoint
No, Federer is much better than Zeballos. So if even Zeballos could beat Nadal on red clay, then a left-handed Federer would double-bagel Nadal on all surfaces.
As it is, even a right-handed Federer has beaten Nadal on all surfaces. So a left-handed Federer would be invincible against Nadal.
You do realize that's all completely hypothetical, right?