Brett Oberholtzer was pounded for six runs -- five earned -- in two innings by the Nationals on Friday.
Dexter Fowler (neck) will return to the lineup Saturday.
Dexter Fowler (neck) is expected back in the lineup Friday.
Delino DeShields Jr. went 0-for-4 with two strikeouts on Wednesday and is hitless in 10 at-bats so far this spring.
Dexter Fowler was scratched from Wednesday's Grapefruit League lineup due to neck stiffness.
Adron Chambers (hamstring) participated in baserunning and outfield drills Wednesday morning.
Astros manager Bo Porter expects Japhet Amador to make his spring debut on Saturday.
Jonathan Villar hit a two-run homer to supply all of Houston's offense Tuesday against the Mets.
Marc Krauss went 2-for-4 with a homer in the Astros' 4-0 shutout of the Marlins on Monday.
Dallas Keuchel pitched a pair of scoreless innings Monday in his start against the Marlins.
George Springer walked all four times he was up, stole his third base of the spring and scored twice Monday versus the Marlins.
Adron Chambers (hamstring) did high intensity work on a stationary bike Sunday in Astros camp.
Jarrod Cosart pitched two hitless innings as the Astros beat a Braves split-squad 7-4 on Sunday.
Making his spring debut, Chad Qualls gave up two runs and three hits in his inning versus the Braves on Sunday.
The Astros expect Mark Appel (appendectomy) to be ready to appear in a Grapefruit League game by mid-March.