DENVER (AP) -- The Houston Astros have recalled right-handed pitchers Jordan Lyles and David Henderson from Triple-A Oklahoma City for Monday's doubleheader against the Colorado Rockies.
Lyles will start the second game of the doubleheader. Under the rules for the new collective bargaining agreement, a team is allowed to add a 26th player for a doubleheader.
Lyles is 0-1 with a 5.29 ERA in three starts this year. This is his third tour with the Astros this season after making the opening day roster.
Henderson appeared in 14 games with Houston before being sent to Triple-A on May 15. He was 0-2 with a 4.02 ERA and one blown save.
To make room for Henderson, the Astros optioned righty Enerio Del Rosario to Oklahoma City.