The Spanish constitution acknowledged Juan Carlos as King of Spain on November 22nd 1975.
At that time Rafael Nadal was not even born. To this day this will most probably be the only major title the 24-year-old will never have.
However in the Sports of tennis, Rafa is the current real king.
Statistics for the World number one are ridiculous when we consider the Australian Open is the only grand slam title Nadal does not currently hold, although he did triumph in Melbourne two years ago.
Nadal has won nine Grand Slam titles, all in a five-year span.
At 24 years, Rafa is the third youngest of the career Slammers, behind 22-year-old Don Budge in 1938 and Aussie Rod Laver in 1962. It is hard not to make him the favorite for all four majors this season - providing he remains fit and not injured.
On the eve of his Australian Open quarterfinal match against his compatriot David Ferrer, we give you the ten reasons why the World number one is so tough to beat.