Astros manager Bo Porter said Friday that he will use Chad Qualls to close games. Qualls converted the Astros' last save chance, but they've had so few opportunities that it's been tough to say who the favorite for saves is. The veteran reliever holds a 3.55 ERA and nice 15/3 K/BB ratio over 12 2/3 innings this season, though he's also posted a 1.66 WHIP. While he's far from a safe bet to keep the gig over the long haul, Qualls needs to be owned in all fantasy leagues for the time being.