Links: Roster Moves and Minor League Assignments

• The St. Louis Cardinals send down closer prospect Chris Perez, according to the Associated Press.
• Brett Gardner beat out Melky Cabrera for the Yankees starting centerfield position, says Mark Feidsand of the Daily News.
• Colorado Rockies top pitching prospect Jhoulys Chacin will begin the season on Double-A, reports Jack Etkin of Inside the Rockies.  The move was made largely because the weather there will be more mild than at the Rockies Triple-A facility in Colorado Springs.