One day after having a cyst in his medial collateral right knee area drained, Jason Castro missed his second consecutive game with a sprained knee Wednesday. Castro noticed some improvement, but he doesn’t have a timetable for a return to the lineup. “I guess we’ll just see how it feels and progress from there,” he said. “But it feels a lot better this morning. The soreness has gone down, and that was good to see waking up.” Castro, the Astros’ lone All-Star, missed the entire 2011 season recovering from right knee surgery. Manager Bo Porter will be cautious with him the rest of the season. “As soon as he’s able [...]