Relievers in baseball are a volatile species. Good relievers come and go every year, but what makes a truly great relief pitcher is unflappable consistency and the ability to rise to the big moment.
For the first seven years of his big league career, Aroldis Chapman was that guy. He made four All-Star appearances with the Cincinnati Reds, was the closer on a Chicago Cubs team that won the World Series, and earned the richest contract for a reliever ever with the New York Yankees. His propensity as the hardest thrower added to his reputation as one of the most intimidating pitchers in baseball.