I first saw Wilin Rosario in the 2009 Arizona Fall League. In 15 games that fall, Rosario served as the designated hitter in seven contests and played at catcher in the other eight. What I saw opened my eyes. Apparently, the Colorado Rockies were impressed as well, as Rosario was on the fast track to Denver. He currently serves as the team's catcher while Ramon Hernandez recovers from tendinitis in his left hand...
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