Top prospect update 

May, 7, 2013
Several top prospects made their respective clubs' Opening Day rosters, including right-handers Shelby Miller and Jose Fernandez, left-hander Tyler Skaggs and outfielder Jackie Bradley, Jr., but most were sent to the minors for a variety of reasons that range from service time concerns and development to the younger player being blocked by a proven veteran. Some of these talents will push their way to majors sooner than later.

Oscar Taveras, OF -- St. Louis Cardinals
Taveras is blocked by the trio of Jon Jay, Matt Holliday and Carlos Beltran and if the Cardinals stay healthy and contend, as expected, it's unclear when they'll call for Taveras' help, and where he'll play once he's in the big leagues.