Novak Djokovic was tennis’s immovable force–the man who turned Grand Slam draws into personal playgrounds and silenced stadiums with every improbable comeback.

Djokovic's ranking is an irrelevance to his wider tennis ambitions but now more than ever, he needs it to help him achieve them.

Novak Djokovic has had a lengthy career of dominance. He's won every significant title and has the most Grand Slams of all time. But nothing lasts forever. The Serbian suffered a 6-3, 6-4 loss to Matteo Arnaldi at the Madrid Open on Saturday.