Bridge over troubled waterpublished at 15:43 Greenwich Mean Time 4 February
Derry v Tyrone, Celtic Park 15:45 GMT
Orla Bannon
BBC Sport Northern Ireland at Celtic Park
The Derry and Tyrone fans got their first sight of each other on Craigavon Bridge in the queue to cross the choppy River Foyle.
Given the context to the latest chapter in this most enduring of rivalries, it's no surprise that supporters of both teams are out in force and were in situ several hours before throw-in.
Over 10,000 tickets were sold as of this morning and with late online sales, that could rise closer to the capacity of 12,000.