That is the major claim by Sky Sports analyst Mark Petchey.
Nadal begins his Madrid Open campaign later today against Gael Monfils, aiming to continue his remarkable form.
The Spaniard has not dropped a set on clay since 2017 – currently 46 sets unbeaten – and has also won 19 matches in a row, stretching back to the Rome Masters last year.
After an injury-hit start to the year, Nadal has looked irresistible, winning record 11th titles in Monte Carlo and Barcelona.
The 31-year-old is the overwhelming favourite to win this week, then in Rome later this month and the French Open, which begins at the end of the year.
And Petchey says that after analysing Nadal’s results since last year, he came up with a conclusion which is sure to worry the rest of men’s tennis.
Petchey told Sky Sports: “We did some analysis last year on his run at the French Open in lots of different categories.
“[And] it was the best Roland Garros he’d ever had in terms of serve speed, in terms of points won.
“When you look at his numbers for 10 Roland Garros’, last year was the best by some distance.
“So yes he is playing his best ever [tennis].”
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