I can sorta, kinda relate in a roundabout way to Dez's angst over his injury. Several years back, I avoided going to the hospital out of fear and anxiety that a condition I had would lead to something really bad. I avoided dealing with it out of mostly fear, I guess. As it turned out, my son talked me into going into emergency, whereupon I ended up coming within only hours of losing my life, according to the doctors. They operated and now all is fine, years later.
As fanatic as Dez is about his career with the Cowboys, I'm sure he saw a possibility of his career possibly being in jeopardy and didn't want to deal with it, even if it was a definite longshot. Football means his life to him and the thought of losing it, even for a short while, is probably fairly unthinkable to him.
Anyhow, I was relieved to hear it's something that won't end his season, much less his career. I'm certain he was as well. Not wanting to deal with the problem was simply his way of copping out, I think. I know how that can happen.