The Astros recalled Dubin from Triple-A Sugar Land on Tuesday, Matt Kawahara of the Houston Chronicle reports.
The right-hander has a 5.14 ERA, 1.69 WHIP and 36:19 K:BB over 35 innings for the Astros this season, and he'll rejoin the big club for Tuesday's matchup with the Pirates. Dubin should fill a low-leverage role while up in the majors.