Dwight Gooden thinks the Washington Nationals will win a World Series before too long. It probably won't happen this season, but as long as Stephen Strasburg and Bryce Harper stay healthy, he says it should happen within the next few years.

Don't underestimate Gooden's predictive powers. He speaks from experience. When he watches Strasburg and Harper take the field together—as they did Wednesday in New York—Gooden sees what he called the best young duo in nearly 30 years.

Meet...