Barreto was optioned to Triple-A Las Vegas on Thursday.
Barreto looked to have made the team even after the Japan Series (he did not record an at-bat) until the Kendrys Morales deal Monday. Unfortunately for the 23-year-old, the deal pushed him down the pecking order. Barreto hit .351 in Cactus League play with a .429 on-base percentage, so if he keeps up the good work he'll remain one of the top guys on the callup list.