The article literally says that Federer, Nadal, and Djokovic are pyschopaths because they are, and I quote, "goal‑driven, they are obsessed, and above all else they are determined and they will do anything to get there".

Literally could be said about anybody who has ever had success on anything, and particularly sustained success over time. I don't see how this theory brings anything interesting to the table, unless they would have scanned their brains and found matching brain features to those of actual diagnosed psychopaths.

We all know that you gotta have something unique in your mindset to have this level of commitment to something, that's not news.