The Miami Marlins have called up shortstop Jazz Chisholm, and he will be active for tonight's game against the Toronto Blue Jays. Chisholm is one of the top prospects in the Marlins system and will presumably see playing time immediately. He's exclusively played shortstop in the minors, but the Marlins have an opening at second base right now and he may slot in there, as Miguel Rojas has been doing very well at shortstop for the Fish. Chisholm has a lot of swing-and-miss in his game, but he's ...