Shortstop Javier Guerra (31) of the Greenville Drive warms up before a game against the Augusta GreenJackets on Thursday, June 11, 2015, at Fluor Field at the West End in Greenville, South Carolina. Guerra is the No. 13 prospect of the Boston Red Sox, according to Baseball America. Greenville won, 10-1. (Tom Priddy/Four Seam Images)