The improbable opening day story of Pirates reliever Rob Zastryzny is one worth celebrating

CINCINNATI — When Rob Zastryzny and the Pirates’ other relievers walked from the dugout to the bullpen at Great American Ball Park late Thursday afternoon, the 31-year-old turned and took a look around. Peering into a sea of red-clad fans and taking note of the bunting draped from railings as a way to commemorate the return of baseball, Zastryzny was careful not to waste a golden opportunity to admire the scene and soak it in. After 10 years of professional baseball, which included a stint with the Long Island Ducks of the Atlantic League, Zastryzny had finally made an opening…