Several top fantasy baseball prospects, including Chase DeLauter and Kevin McGonigle, have had good success early on with their respective big-league clubs. If you took a cautious approach in building your fantasy baseball team’s roster this preseason and missed out on rostering the first wave of high end prospects, don’t worry, there are several other minor leaguers who are raking in the minor leagues and likely to receive a promotion to the major leagues before long. In recent weeks top fantasy baseball prospects like Konnor Griffin and Ryan Ward received in-season promotions and made their major league debuts, but player slumps and unexpected injuries are causing major league teams to look to their farm systems for reinforcements.