PITTSBURGH (AP) — Paul Skenes' stuff was as electric as advertised.
A fastball that reached at least 100 mph 17 times. A slider that left major leaguers shaking their heads. An invention called a 'splinker' that is a hybrid of a splitter and a sinker and dips and dives unlike any pitch anywhere in baseball.
Yet even at age 21, the Pittsburgh Pirates rookie knows all the 'oohs' and 'ahs' and knee buc…