Astros reliever Anthony Bass could return from the disabled list after Sunday's appearance at Class A Quad Cities, according to MLB.com.
Bass is set to throw two innings for the first time Sunday, which could be the final step in his recovery. A decision on whether to activate him will likely come Monday, depending on how he responds.
"At that point, we'll make a decision on whether we want to see more or rather he's ready to come up," general manager Jeff Luhnow said. "He's always been a guy who's able to go more than an inning for us, and we've got a lot of one-inning guys right now. We're going to need to need him to go more than an inning, so that two-inning stint is important for us."
Bass has not pitched for the Astros since May 10 due to a back injury. He had a 4.50 ERA in 18 innings of work before the injury.