Carlos Marmol imploded against the offensively-bereft Astros Tuesday, allowing a grand slam in the ninth inning to send the Cubs to a shocking 6-5 loss. It was his eighth blown save of the year. Marmol entered the ninth looking at one of baseball's easiest save opportunities: A three-run lead against Houston. After getting lead-off hitter Jimmy Paredes to line out, things got ugly. J.B. Shuck singled to right and took second on a wild pitch. Clint Barmes singled and pinch-hitter Matt Downs walked to load the bases. Marmol then served up a grand slam to pinch-hitter Brian Bogusevic, who doubled both his season total of home runs and RBI on one pitch. Coming into the game, Marmol was 10-for-10 saving games since returning to the closer's role, though his control wasn't sharp during that stretch. Tuesday's implosion could get Cubs manager Mike Quade re-thinking his ninth-inning alignment. If he makes a change, Sean Marshall would be next-in-line for saves.