Within Bernardo Fallas' Notes column we see that Felipe Paulino's lower back spasms are improving:
Paulino, who won the fifth and final spot in the starting rotation, suffered lower back spasms Wednesday.
His condition had improved by Thursday. He said he could walk without problem but not enough to convince the Astros to proceed as planned.
This isn't good, obviously, but the Astros won't need him for the first couple of weeks, thanks to the ridiculousness that is the April schedule.