Clint Frazier on Yankees demotion, center field revelation and shoes

MOOSIC , Pa — Clint Frazier’s black Mercedes truck is filled with 30 pairs of sneakers, reminding him that being back in Scranton isn’t all bad. “It was probably a good thing I got called down for a little bit,” the 24-year-old told The Post with a smile, “because I have to stay out of…