Robbie Grossman (quad) is aiming to return to Grapefruit League action on Friday.
Jonathan Villar (ankle) was held out of workouts Thursday in Astros camp.
Samuel Deduno will open the season in long relief.
Carlos Correa homered and doubled Wednesday as the Astros beat the Phillies 7-1.
Asher Wojciechowski picked up his first win of the spring Wednesday by limiting the Phillies to one run in 4 2/3 innings.
Jon Singleton went 0-for-4 on Wednesday and is a 2-for-23 slump over the last 11 days.
Jonathan Villar exited Wednesday's Grapefruit League game with a right ankle sprain.
Robbie Grossman left Wednesday's Grapefruit League game with a left quad contusion.
Brad Peacock (hip) could throw in a Grapefruit League game on Sunday.
Astros manager A.J. Hinch said Wednesday that Josh Fields (groin) won't throw off a mound for a couple of days.
Collin McHugh gave up three runs -- two earned -- and two hits in five innings Tuesday as the Astros edged the Mets 4-3.
Jake Marisnick went 2-for-2 and hit his first spring homer Tuesday against the Mets.
Astros manager A.J. Hinch said that Brad Peacock (hip) threw in a minor league intrasquad game Tuesday.
Scott Feldman gave up five runs in three innings Monday in a loss to the Braves.
Facing his former team, Evan Gattis homered Monday against the Braves in his return to the lineup.