The Pittsburgh Pirates recently called up Phil Irwin to provide the team with bullpen depth over the last two games, with the rest of the bullpen needing a break. Then, Charlie Morton and Gerrit Cole threw back-to-back eight inning starts, giving the bullpen the break they needed.

Bill Brink reports that Irwin will be optioned back to Triple-A, and that a corresponding move will be announced later.

https://twitter.com/BrinkPG/status/464137476827648000

The Pirates are off tomorrow, so I'd expect the corresponding move to take place on Friday. I wouldn't be surprised if the move is to add another hitter to the bench. Andrew Lambo would have been the top option, but he was placed on the DL today with a bruised thumb. The other options on the 40-man roster are Jaff Decker, Chris McGui...

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