SAN ANTONIO – Jonathan Singleton is playing for his second major league franchise. The power-swinging first baseman already has recorded 408 minor league games with seven teams during five years of pro ball and has yet to reach the age of 22. Center fielder George Springer is playing on his fourth team in three seasons, while righthanded pitcher Mike Foltynewicz is with his fifth club in four years. All three athletes entered the 2013 season ranked among the top five of the Astros’ best major league prospects, according to Baseball America. None has been part of a club as deep, talented and loaded as the 2013 Corpus Christi Hooks. “Help [...]