Karstens is the plan B for the Pirates' rotation.

Yesterday afternoon, the Pittsburgh Pirates had Jeff Karstens throwing four innings as the starter in a AAA game at Pirate City.  Today, Brian Burres took the mound at McKechnie, throwing five innings.  Manager Clint Hurdle said this afternoon that the Pirates are trying to stretch both pitchers out incase they need a plan B along the line.  That plan B could be needed sooner, rather than later.

James McDonald is currently rehabbing from a side injury he sustained on March 11th.  McDonald pitched a bullpen session today, and if he feels better tomorrow he will be scheduled to throw in a minor league game on Saturday.  However, the season is getting closer, and there might not be enough time for him to get stretched out.  In his la...

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