Diamondbacks Acquire Carlos Rosa

The Diamondbacks have acquired righthander Carlos Rosa from the Royals in exchange for shortstop Rey Navarro, tweets David Holtzman, the director of media relations for the Royals.

Rosa, 25, posted a 4.56 ERA, 10.1 K/9, and 4.1 BB/9 in 71 Triple A innings last year.  Early in 2010, his peripherals have moved in the wrong direction.  Baseball America notes that Rosa was originally part of the Mike Jacobs trade in October of '08, but elbow concerns prompted the Royals to send Leo Nunez to Florida instead.  BA writes that Rosa, who was converted to relief last year, had the best fastball in the Royals' farm system.  However, his secondary pitches need work.

Navarro, 20, was promoted to High-A Visalia for the 2010 season.  In 2009, the switch-hitter hit .262/.308/.339 for Single-A South Bend.  BA sees him as a plus defender capable of playing a variety of positions.

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