The Setanta Cup round one, first leg between Lisburn Distillery and Derry City goes ahead on Saturday after the pitch was deemed playable.
The Setanta opener at New Grosvenor was in doubt because of heavy rain over the past number of days.
It will be Declan Devine's first competitive game in charge of the Candystripes.
Glentoran also start their Setanta campaign on Saturday afternoon with an away game against Bray Wanderers.
Devine replaced Stephen Kenny as Brandywell boss last month.
Portadown host Bohemians and Cliftonville visit St Pat's Athletic in first leg encounters on Monday night.
Linfield, the only Irish League club to win the competition, and Crusaders have byes into the quarter-finals.
League of Ireland teams Shamrock Rovers and Sligo Rovers also go straight through to the last eight.