Hearts, Hibs and Edinburgh City have discovered their group-stage opponents in the Betfred Cup.
Hearts are in Group B and will face Dunfermline, Peterhead, East Fife and Elgin.
Hibs are in Group D and will play Ross County, Montrose, Alloa and Arbroath.
Edinburgh City are in Group F and will take on Motherwell, Morton, Queen’s Park and Berwick Rangers.
Full fixtures and TV selections will be announced next week once the SPFL have liaised with official broadcasters BT Sport.
The matches are due to be played on the weekend of July 15, July 18/19, the weekend of July 22, July 25/26 and the weekend of July 29.