Qualls, who earned a one-out save in his last relief appearance Friday night, retired two batters on five pitches Monday against San Diego to pick up his third hold of the season. Qualls entered the game with one out in the bottom of the eighth inning and quickly retired Derek Norris and Will Middlebrooks. Through nine relief appearances with the Astros this season, the veteran right-hander is 0-1 with two saves, a 3.52 ERA, 0.78 WHIP and 10:2 K:BB over 7.2 innings.