Jon Singleton is to be optioned Friday to make room for Carlos Gomez on the 25-man roster. It’s unknown, though, what the roster move for Mike Fiers, the righty pitcher, will be, or whether Fiers will report Friday and be activated right away.
Fiers pitched last on Wednesday, throwing 100 pitches in six innings, so he presumably wouldn’t start until Monday at the earliest.
All in all, making room for Fiers is trickier. The Astros are at 12 pitchers now and have carried 13 at points, but there’s no position player who’s an obvious choice to be sent out.