Cam Schlittler started the season at Double-A.

So did Jacob Misiorowski .

Trey Yesavage began the year in the Florida Complex League before skyrocketing up the Toronto Blue Jays’ system, pitching at four minor-league levels before making his MLB debut less than a month ago.

Yet all three have left major marks on this MLB postseason, as have a number of other rookie pitchers in a compelling youth movement that’s sweeping the sport.

“It’s a lot of weight on your shoulders as a rookie,” Schlittler, 24, said Tuesday at Yankee Stadium of being entrusted on the postseason stage.

“I think the guys that separate themselves are going to be the ones that are confident in themselves and [are] just going out there and treating it like another game.”

In his postseason debut last Thursday, Sch

See Full Page