They are standards maintained in the organisation of his private life, driven by a wife who is said to apply extreme precision to the running of his domestic affairs.

When Federer travelled to the French Open three weeks after the birth of his second set of twins, it is understood all four children joined him in Paris. A private plane and airstrip are understood to have been used, with five nannies part of the entourage. It is believed to be a regular arrangement.

‘Mirka keeps the whole thing together and oversees the organising of their life,’ said Rene Stauffer, his biographer.