An interesting question, Alan.
I think a lot of his attitude to 'win at all costs' has a great deal to do with, so he said, with his desire to 'win at all costs' in his battle with cancer.
No doubt, measures of intense craving and aversion at work.
“No lists of things to be done. The day providential to itself. The hour. There is no later. This is later. All things of grace and beauty such that one holds them to one's heart have a common provenance in pain. Their birth in grief and ashes.”
- Cormac McCarthy, The Road
Learn this from the waters:
in mountain clefts and chasms,
loud gush the streamlets,
but great rivers flow silently.
- Sutta Nipata 3.725Compassionate Hands Foundation
(Buddhist aid in Myanmar) • Buddhist Global Relief