Sliders, Soriano’s sinkers and split-finger trash balls. Plus: Baseball card of the week
The Windup Newsletter ⚾ | This is TheAthletic‘s MLB e-newsletter. Sign up here to obtain The Windup instantly in your inbox. Tyler Kepner’s right here along with his weekly Column sliders for a Windup takeover. Plus: Baseball card of the week! Let’s go: Sinker Swim: A star born by… utilizing his greatest pitch much less?…