The first two players are Kenyans, but the last one is from Uganda and has initially played for former Kenyan top-tier side Sony Sugar.
Posta are also contemplating who to drop to create space for new players. The management is strict on the number of players in the team owing to tough economic times.
The Mailmen have collected just one win from the 11 matches they have played in the FKF-Premier League, drawn seven and lost three. They have also scored seven goals and conceded 11 which puts them at negative four in goal difference.
The management felt Sammy Omollo, who is commonly referred to as Pamzo, had not done enough and decided to part ways with him.