Francisco Cordero kept clicking play. It was late at night on June 26, 2012, and the man the Reds had trusted for years as their closer was up watching a clip of Aroldis Chapman, the man they trusted now. With two strikes and two outs, Chapman threw a collarbone-high fastball past the Milwaukee Brewers pinch-hitter. Chapman works quickly on the mound, limiting his expressions to either licking his teeth or biting his lip. Every once in a while, he’ll do both. But this time, he decided to celebrate. As an umpire indicated the final out, Chapman took two long steps forward, and on the third, descended into a wobbly double-somersault.