Manager Dusty Baker said Sunday that Alvarez (undisclosed) is "making progress," but the skipper was unwilling to put a timeline on the 23-year-old's return to the Astros,
Chandler Rome of the Houston Chronicle reports. "He hasn't been hitting that long. He hasn't been running that long," Baker said. "You don't want to do anything to hurt his legs, you don't want to do anything to hurt his obliques because you're not used to rotating. I really don't know how long it's going to be or how long it's going to take."