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Big weaknesses on contenders

These five clubs must work on fixing major holes in their games this spring

Updated: February 20, 2013, 4:14 PM ET
By Paul Swydan | FanGraphs

Every year during spring training, teams are doing more than soaking up sun and trying to cut out early to get in 18 holes. They're actually working on their games, and often that means working on areas in which they were deficient the year before.

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