Yarbrough (1-8) allowed five runs on eight hits over 3.1 innings Friday, striking out three and taking a loss against the Red Sox.
Yarbrough took over in the second frame after a scoreless inning by opener JT Chargois and he promptly gave up a run. The 30-year-old lefty then gave up two more runs in each of the fourth and fifth innings. Yarbrough had tossed 8.1 scoreless frames over his previous two outings, but his ERA now sits at 4.87 through 16 appearances. He'll likely take the mound at home against the Yankees next week.