It's been rumored that Ryan Sweeney is undergoing knee surgery that will end his season. There's no question that Sweeney is a valuable asset for the A's playing excellent defense in right field, but more importantly versatile enough to play all three outfield positions, and he possesses a strong arm as well. 

Defensively he'll be missed although Gabe Gross does have a very good arm in the outfield as well. Offensively is w...

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