KISSIMMEE, Fla. – Top Astros prospects Carlos Correa, the top overall pick in last June’s draft, Jonathan Singleton and Domingo Santana will make the trip with the club to Viera to face the Washington Nationals on Saturday night. “We’re going to give some of our regular guys a day,” manager Bo Porter said. “Singleton, Correa and Santana will come over. They’ll travel. We’ll also have a couple of pitchers that will travel as well.” Santana, a 20-year-old outfielder, Singleton, a 21-year-old first baseman, and Correa, 18-year-old shortstop, are three of the Astros’ top prospects. This will be Porter’s first chance to see Correa against major-league competition. “I haven’t been able [...]