But objectively how many players from before the Open era can stay ahead of Sinner?
We are talking about artisanal tennis, a tennis limited to a few initially chosen nations.
Achieving what Sinner has already achieved in his career despite his still young age is infinitely more complicated than in the pioneering times of tennis.
We should ask ourselves why a Mikan in NBA basketball, despite a basketball curriculum that few other players can boast, is not even placed in the top 20 all time of many rankings.
Precisely because the context in which certain results are obtained is evaluated.
Today tennis has reached an exasperated level of professionalism, with increasingly universal competition.
Precisely for these reasons Sinner became the GOAT of Italian tennis even before winning his first slam independently of Pietrangeli's 2 (in the amateur era) and the Roland Garros won by Panatta in the only real season played at the highest levels.
I couldn't make a list of the 50 best tennis players in history, but I can give you a ranking of the best Italian tennis players all time in the top positions, basing the requirements on the reasons listed above, and that is;
Sinner
Berrettini
Panatta
Pietrangeli
Fognini
With Musetti ready to take over within a few years.