Aroldis Chapman rebounds from rough start

Aroldis Chapman was nervous.

The 6-foot-4 closer, the guy with the Autobahn fastball and diamonds like disco balls sparkling in his earlobes, had just plunked himself on a well-worn bench in the visitors’ dugout at U.S. Cellular Field.

Chapman seemed confident and even a bit cocky from the outside, but the Cubs insisted the stressful moment had his insides churning.

What would possibly make this dude nervous?