Actually the best personal interest for Rafa is to cheer for Ferrer to be 4th so he can pass the image of being a true amigo and humbleito.
To be humble and nice is a personal interest to conquer fans and other people. Its still the best personal interest for someone that already was number 1 and wont care being 4 or 5 or retiring next season as long as you love him.
Who you are? Nadal Where are you from? Mallorca Do we love you? Yes. So we dont care.