Top catching prospects and how they measure up defensively.
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by Richard Drew - AP
In this March 8, 2009 file photo, Baltimore Orioles Matt Wieters watches his ninth-inning single to lead off the ninth inning of a spring training baseball game aganist the Minnesota Twins in Ft. Lauderdale, Fla. The Twins won 2-0. Although catcher Matt Wieters was assigned to Baltimore's minor league camp Sunday, March 29, 2009, it probably won't be long before the team's prized prospect becomes a fixture in the Orioles' starting lineup. (AP Photo/Richard Drew, File )