Doolittle, who was placed on the 10-day DL Wednesday with a left shoulder strain, also has discomfort in his his pecs and biceps and was sent for an MRI, the Bay Area News Group's John Hickey reports.

EDGE Analysis

He missed 59 games last year with a similar injury and 121 games in 2015 with two different shoulder issues, and this seems like more of the same. He should be considered out indefinitely, and it would not be surprising if he did not return until after the All-Star break. Stay tuned for word of his MRI results for a more firm timetable. Santiago Casilla will likely serve as the primary closer for the foreseeable future.