Astros manager Bo Porter said that Monday was the first time that Dexter Fowler (back) was able to move around the field during batting practice and swing a bat. "Any time you start talking about back, it's just tricky," Porter said. "You're talking about being able to swing and field and throw, and you just want to be careful." Fowler said Monday that he feels "all right. "We'll just evaluate it day by day." The outfielder has missed the last four games.