“By the time Rivera reached the mound, he had shed all of the elements of humanity inconvenient to his job. Rivera tuned out the fans, as if switching off a light, and mentally muted Yankee Stadium’s thumping sound system; Metallica’s “Enter Sandman” had been used as the accompanying music for his entrance for four years before he knew the lyrics.” Rivera never had to train himself to block out anxiety or self-doubt, the evil twins of emotion that have destroyed countless other players, because he can’t remember ever feeling threatened by them. “Never,” he says. “I’ve always loved the competition. I’m not afraid of it.”
From a New York Magazine artice titled The Confidence Man – Inside the mind of baseball’s greatest closer, Mariano Rivera.
Here’s the full article.