Doval allowed a run on two hits in one inning to earn a hold in Thursday's 3-1 win over Pittsburgh.
The 23-year-old gave up a solo home run to Will Craig in the eighth inning, but that was the extent of the damage. Doval has now allowed an alarming four homers in 9.1 innings. He's at a 6.75 ERA, 1.29 WHIP and 9:4 K:BB with five holds and two blown saves in 11 outings. San Francisco has a number of steadier options in the bullpen, so Doval could be limited to lower-leverage assignments until he proves he can keep the ball in the yard.