Doolittle was placed on the 10-day DL on Wednesday with a left shoulder strain.

EDGE Analysis

He missed 59 games last year with a similar injury and 121 games in 2015 with two different shoulder issues, the Bay Area News Group's John Hickey reports. With this in mind, it would be wise to expect Doolittle to miss significant time with this latest shoulder ailment. Doolittle had been serving as Oakland's closer against left-handed hitters, so Santiago Casilla's stock will see a bit of a bump, assuming he takes over the full-time role.