All-Star Astros catcher Jason Castro understood why he was held back during the All-Star Game on Tuesday. “It’s one of those things that the game really has some purpose now,” he said. “In order for that to kind of be the focus of the game you have to have some guys who are kind of on that edge as far as being backups and whatnot. “In the instance that the game goes extra innings you have to be ready for that. It’s definitely understandable. There were a handful of guys that didn’t get in. Being just a part of it was an honor and a great experience.” If anything, Castro [...]