Although I would generally agree with Dr Rotella, the author of this article, he teaches GOLF.
Not exactly a contact sport. So my response to this is actually a quote from Mr Like Tyson ~
"Everyone has a plan until they get punched in the face."
What I like so much about the quote is that its application stretches far beyond boxing (and football). It really has meaning in any area of life, whether the blow comes from a health issue, losing your job, making a bad investment, a traffic jam, whatever.
It's how you react to that adversity that defines you, not the adversity itself.
A-Jay