10 MLB Players that Need to Put Up or Shut Up in 2010

Potential. That is the one word that these 10 guys have in common. Its what we have been hearing about them for a few years now. None of them have fulfilled their promise......yet. Injuries have played a part for some. Some have been blocked by other more established veterans and some have just disappointed. Opportunity now presents itself for these guys. Its now put up or shut up time.

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