Astros prospect RHP Mark Appel struck out 10 batters over eight scoreless innings on Tuesday for Double-A Corpus Christi, allowing just two hits and one walk.
Darin Downs (oblique) will begin a rehab assignment at Double-A Corpus Christi on Friday.
Chris Carter hit a three-run home run in the eighth inning to lead the Astros to a stunning 4-2 win over the Athletics on Tuesday.
Chad Qualls retired the Athletics in order in the ninth inning on Tuesday to earn his 15th save.
Dexter Fowler hit his eighth home run of the season in Tuesday's win over the Athletics.
Dallas Keuchel gave up just two runs -- one earned -- over seven innings Tuesday, settling for a no-decision against the Athletics.
George Springer (quad) took batting practice on Tuesday.
Astros prospect OF Teoscar Hernandez went 4-for-7 with a home run, double and three RBI on Monday for Double-A Corpus Christi.
Astros prospect OF Delino DeShields had a monster game Monday, going 4-for-6 with two home runs, one double, one triple and five RBI for Double-A Corpus Christi.
Peter Gammons reports that the Tigers have claimed Chad Qualls off revocable waivers from the Astros.
Marwin Gonzalez went 3-for-4 with a couple of doubles Monday against the A's.
Brad Peacock (forearm) is on track to make his scheduled start on Wednesday versus the Athletics.
Astros general manager Jeff Luhnow said Monday that he's hoping George Springer (quad) will be ready for activation during the September 2-3 series versus the Angels.
FOX Sports' Ken Rosenthal reports that Chad Qualls has been claimed on revocable waivers.
FOX Sports' Ken Rosenthal reports that Scott Feldman has cleared revocable waivers.