Astros interim manager Tom Lawless will have an extra-long bench to work with in his debut on Tuesday, as Houston announced a series of September callups in advance of its game against the Angels.
The club added six players to the active Major League roster, and right-hander Samuel Deduno -- acquired off waivers on Saturday -- will also be in uniform and available.
Houston recalled outfielder L.J. Hoes, catcher Max Stassi (the club's 19th-ranked prospect) and infielder Jonathan Villar, and it selected right-handers Jorge De Leon and Nick Tropeano (No. 13 prospect) to the Major League roster, while lefty Darin Downs was activated from the 15-day disabled list.
To make room for De Leon and Tropeano on the 40-man roster, the Astros designated right-handers Paul Clemens and David Martinez for assignment.
Tuesday will be the first game for Lawless -- Bo Porter was dismissed from managerial duties on Monday -- and new bench coach Adam Everett. Houston's 40-man roster is full, and the Astros have 32 players on their active roster.