Ricardo Kaká lay in bed, staring at the ceiling. The Real Madrid playmaker had got to the point of wondering what the point of it all was and whether things would ever get better? “There were days you’d wake up and have no energy,” he reflected in a documentary on his woes.   For longer than he cared to remember, his time had been spent between consultations with specialists and sessions in the gym on his own. The groin problem Kaká had aggravated towards the end of his time at Milan had relapsed and the imbalances it created were impacting on his knee.   He’d had surgery and undergone a cutting edge biomechanical study pioneered by his personal physician Toribio Leite. But still, there…