Nick Tepesch was solid through four innings, but ran into trouble in the fifth inning and ultimately took a no-decision as the Rangers fell 4-2 to the Astros on Thursday.
Jim Adduci is being evaluated for a possible concussion after leaving Thursday's game versus the Astros with a head injury.
Alex Rios (thumb) remained out of the Rangers' lineup Thursday.
Rangers prospect 3B Joey Gallo went 1-for-3 with a home run and three RBI on Wednesday for Double-A Frisco.
Leonys Martin went 3-for-5 with a homer and three RBI in Wednesday's 12-4 rout of the Mariners.
Colby Lewis pitched a complete game Wednesday in the Rangers' defeat of the Mariners.
Rangers prospect RHP Jake Thompson allowed three hits and three walks and struck out six batters over 6 1/3 scoreless innings on Tuesday for Double-A Frisco.
Alex Rios admitted Wednesday that his bruised thumb is still an issue.
Rangers signed RHP Zach Segovia to a minor league contract; assigned him to Triple-A Round Rock.
Nick Martinez struggled versus the Mariners, allowing five runs on six hits over five innings in Tuesday's loss.
Neftali Feliz worked a scoreless ninth inning to close out the Rangers' 2-0 win Monday over the Mariners.
Daniel Robertson finished 1-for-3 with two walks in Monday's 2-0 victory over the Mariners.
Miles Mikolas painted eight shutout innings, striking out five, in a 2-0 victory Monday against the Mariners.
Rangers purchased the contract of C Tomas Telis from Triple-A Round Rock.
Rangers recalled OF Michael Choice from Triple-A Round Rock.