Diaz (5-3) blew the save and was charged with the loss against Arizona on Wednesday, allowing four runs (three earned) on one hit and two walks over one-third of an inning.
Diaz took over for Phil Maton with two outs and a runner on first in the bottom of the eighth and proceeded to walk the first two batters before surrendering a grand slam to Corbin Carroll. This would put Arizona on top 8-5, leading to the right-hander suffering a second loss in his last two appearances. It marked Diaz's sixth blown save of the season and his first since July 7 against the Pirates. He's now allowed a home run in back-to-back outings and currently holds a 6.75 ERA in August to go along with an 11:3 K:BB over 6.2 frames.