When he’s healthy, Marinez has the kind of power stuff you want to see in the back of a bullpen. He was healthy enough in 2010 to start the year in Jupiter and end it in the big leagues, though an elbow issue ended his year in July. Along the way, he struck out 13.7 per nine in the Minors, thanks to an improved breaking ball to go with his fastball. If he can improve his command and stay healthy — big ifs — he could see some saves in the future. Shoulder soreness slowed him this spring, but he’s pitching in Double-A Jacksonville’s bullpen now.
The 2006 11th-round pick had a breakout 2010, going to the Futures Game, helping Jacksonville win a Southern League title, finishing third in the system with a .302 average and earning a callup to the big leagues. He makes consistent contact and is selective at the plate. He plays a solid shortstop, though he’s currently blocked by Hanley Ramirez. He’s already been called upon to help in a utility role this year.