Boone hoping Justus Sheffield can help pen down the stretch

Justus Sheffield has been moved from the Triple-A rotation to the Scranton/Wilkes-Barre bullpen with an eye on the left-hander helping the Yankees in September after the rosters expand. “Hopefully he can play a part in our pen down the stretch and give value toward the end of the season,’’ Aaron Boone said of the 22-year-old…