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Can Sanabia fill void in Marlins' rotation?

PITTSBURGH -- One thing the Marlins have been searching for over the last two seasons is a consistent fourth and fifth option in the rotation. With Josh Johnson, Ricky Nolasco and Anibal Sanchez strongly entrenched at the top, several young arms have auditioned for the other roles but have failed to remain consistent.

Thursday night, 21-year old Alex Sanabia showed what he could do when he's at his best, throwing two-hit ball for seven plus innings before the Pirates finally knocked him out. 

Sanabia, a former 32nd round pick, has never had overpowering stuff. His season-high for strike outs this season in Double A Jacksonville was eight. But what makes him good is that he doesn't walk many guys. His strikeout to walk ratio after Thursday's start, the fifth in the big leagues, is now 25 to 7.

Walks have been the biggest hurdles for guys like Chris Volstad, Sean West and Andrew Miller to overcome at this level.