Astros GM Jeff Luhnow is optimistic that Nate Freiman will hit his way into an Opening Day roster spot. Freiman was selected in the second round of last month's Rule 5 Draft and would have to be returned to the Padres if he does not land a spot on the Astros' roster this spring. "It's a big jump from the Texas League to the big leagues," Luhnow told MLB.com, "but if he hits the way we hope he will, he'll work his way on the team."