The Black Stars manager has revealed his stand-by list for the 2014 World Cup in Brazil
Spanish based goalkeeper Razak Brimah made the list alongside Mahatma Otoo, Kwabena Adusei and Yusif Rahman Chibsa.
The four players will not join the team in any of their pre-tournament training sessions.
Appiah named his provisional 26-man squad on Monday. He has until June 2 to confirm his final 23 for the World Cup.
Within this period, any of the players on stand-by could be called upon in case of injuries.