The Yankees outrighted Espinal to Triple-A Scranton/Wilkes-Barre on Thursday.
After having his contract selected from Triple-A on Aug. 1, Espinal was up with the Yankees for one day and didn't make an appearance before being cast off the 40-man roster a day later. With Espinal going unclaimed off waivers, he'll stick around as organizational bullpen depth at the Triple-A level.