Astros reliever Josh Fields, who picked up the save in the team's last win, struggled to close out the Red Sox and took the loss in a 7-5 final.
Fields entered the game with a 5-4 lead and allowed three runs on two hits and a walk, with all three coming on a three-run home run by Stephen Drew. Fields struck out one in the outing, while throwing 14 of 28 pitches for strikes.
Fields is now 1-2 on the season with a 6.86 ERA and one blown save.