The Capital-based Club were scheduled to outdoor their new signings on Sunday before their preseason friendly against Bechem United at the Accra Sports Stadium.
Circumstance however prevented the team from unveiling the players to the fans.
The Club will hence fix a date to show their new recruits to the fans and public.
Hearts of Oak have already signed eight players ahead of the 2016/17 season.
The Phobians have secured the services of former Medeama midfielder Malik Akowuah, Joshua Otoo from WA All Stars, former New Edubiase goalkeeper Ben Mensah, Daniel Kodei and Anthony Nimo all from Liberty Professionals.