Former Real Madrid and AC Milan midfielder Kaka could be the next high-profile figure to head into retirement after "losing the joy" of playing football.
Now 35 years of age and turning out in MLS with Orlando City, the 2007 Ballon d'Or winner admits that his body is struggling to handle the demands of top-level competition.
That suggests that the Brazilian could soon follow the lead of fellow MLS star Andrea Pirlo and bring the curtain down on a glittering career.
Kaka told Globo Esporte: "I don't feel joy in playing football any more, as I feel pain every time I finish a match.
"My body doesn't deal with it very well now and at the age of 35 it is very difficult to recover every time."