Marlins' Magneuris Sierra: Dealt to Marlins

Sierra was traded to the Marlins on Wednesday along with Sandy Alcantara and two undisclosed prospects for Marcell Ozuna, Clark Spencer of the Miami Herald reports.

Sierra is a better real-life prospect than fantasy asset, as he has the potential to offer elite center-field defense, but is raw at the plate. As a member of the Cardinals' 40-man roster, he was shuttled between the majors and minors last season, at the expense of his offensive development. He is a 70-grade runner, however, so he could eventually be a threat to steal 30-plus bases if he is able to secure an everyday role. Look for him to start the year at Double-A, as the Marlins will be able to be more patient with him as his offensive game develops.