The number of seasons in which they participated in all Grand Slam tournaments:
🇪🇸 Rafael Nadal - 10 seasons (22 GS)
🇷🇸 Novak Djokovic - 18 seasons (24 GS)
Rafael Nadal's opponent was his own body. And despite everything, he won 22 Grand Slam.
The greatest ever and a 'what if' at the same time.