Chicago Tribune: A big burden for Cubs bullpen (RR)

On Friday, Rich Hill lasted only three innings, which taxed the bullpen to the point that a fresh arm was needed for Saturday’s game.

So the Cubs sent down Billy Petrick… and recalled Rocky Cherry, who immediately pitched two innings Saturday when Sean Marshall made it through just two innings.

Is another move coming? After a very long pause, manager Lou Piniella said: “Can I answer another question please?”

The bullpen has totaled 13 innings the last two days, leaving in doubt who will be ready if Sunday starter Jason Marquis has to leave early. The bad news is Marquis hasn’t made it through six innings in any of his last six starts.
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“We felt when the weather warmed up, our starting pitching at times would struggle, but that’s normal for any team,” Piniella said before the game.