Duane Underwood. Jr. has always had good stuff and his reputation grew quickly after his selection in the 2012 draft. In 2014 at Kane County, he was electric throwing easy 95 mph fastballs most nights and prospect hounds thought the Cubs might have found their next ace. But for the next couple years, Underwood struggled with arm injuries that limited his availability and tarnished that reputation.
By 2017, Underwood was finally healthy enough to pitch 138 innings for Double-A Tennessee. While the results were not exactly what everyone hoped for, he was good enough in spring training the following season to head to Triple-A Iowa.