Will the real Usain Bolt stand up?

In the movie, Batman commits a cardinal sporting mistake. He has sex on the eve of an important contest, and how the poor fellow pays for it. It is not known how many of these old coaches' tales still work today. Going horizontal a day before standing up and delivering, famously caused much consternation in sports preparation years ago.
Today, not so much.
On the eve of his most damningly testing day in his life yet, what does Usain Bolt do? How does he - drippingly alpha male despite all that louche cool - torment himself before the big day? And fewer days of reckoning come as loaded as the 100m final at London on Sunday. Does the man fret, is he consumed by doubt, does he fling his brightlycoloured, personalized spikes against the wall? Or does he simply go out and party?
Who is the real Usain Bolt?
Since he first burst on the scene in August 2007, the man has brought a childlike freshness to athletics. Bolt was the flash answer to the staid goodness of the Bible-loving Asafa Powell and the training-mad Tyson Gay. He instantly delivered a sport choking from the testosterone-driven '90s.
But over the years, he has slowed down. Clearly not in his running, but his journey. There is, one suspects, an abeyance to a carefully-crafted programme charted out by his PR machinery that plans his 'evolution'. But a crack PR concept cannot go out on to the track and deliver.
One thing is certain, a Bolt training quietly, sombrely nodding at his coach's instructions on the eve of a 100m final, is not something we can imagine. There were quiet moments to Muhammad Ali too, the king of flamboyance on the public stage. People who have watched him closely say he was rattled by the rise of Joe Frazier. Is the younger, hungrier Yohan Blake the new Frazier? Or is there a greater battle awaiting the great Jamaican as it did the US boxing legend Ali?