Pena (hamstring) is not in the lineup for Tuesday's game in Toronto.
Pena was forced to depart Monday's contest versus the Blue Jays with a right hamstring cramp. Astros manager Joe Espada said that Pena will go through a full pregame workout and could be available off the bench Tuesday, Matt Kawahara of the Houston Chronicle reports. Raynel Delgado is covering shortstop for Houston on Tuesday.