The pair are named alongside former Latics players Wilson Palacios (Stoke City) and Maynor Figueroa (Hull City).
Espinoza has recently recovered from hernia surgery and is likely to play a big part in the Latics' end of season play offs.
Garcia has had limited first team action but will remain with the Latics squad on an emergency basis.
All other players in the squad are due to fly out to the USA next Monday for warm up friendlies with Turkey in Washington, and Israel in Houston.
Given the links between the Latics and Honduras the central American side will be most Wiganer's second team for the tournament.