When Roberto Osuna burst onto the scene in spring training 2015, he featured a powerful four seam fastball, a fluttering changeup, and a slurvy slider (that some identified as a curveball), with all three offerings having received plus future grades from the...

By Kyle Matte

Published: Mar 13, 2017, 6:00 am Added: Mar 13, 2017, 8:14 am

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