Home to different sports, but neighbours geographically, a city's two main stadiums have stood just a few hundred yards apart for almost a century, yet have rarely crossed paths.
On Friday, however, Celtic Park, the home of Derry GAA, will host a very different ball game as it allows Derry City to use the ground to play the first of five home League Of Ireland fixtures.
The move comes as work continues on the installation of a new pitch at the Ryan McBride Brandywell Stadium.
Supporters have been sharing their excitement, describing it as a rare chance to see their side play at the home of the Oak Leaf County and be part of a rare moment in the city's sporting history.
Claire McCarron is a season ticket holder with Derry City and is looking forward to attending the match on Friday at Find Insurance Celtic Park.
She is not a regular follower of GAA, but did go and see Derry defeat Offaly in a Division Two Allianz Football League match last month at the ground and loved the experience.
"The ground is fantastic and it will be packed with Derry City supporters on Friday evening, so there will definitely be a great atmosphere," she said.
"It's a wonderful ground and I found it easily accessible, so hopefully it will be a great occasion for everyone involved with Derry City."
The ground share is part of a growing relationship between the two sporting organisations and builds upon Derry City being afforded the use of Derry GAA's Centre of Excellence in Owenbeg, near Dungiven, as a training base from January last year.
Secretary of Derry City Robert Martin told BBC Radio Foyle's North West Today programme it was a "historic sporting moment" for a soccer match to be played in the GAA stadium.
"It's sporting history for the city and the interest has been massive, not just within Derry, but from all over," he said.
"We want to get more GAA supporters coming to watch us and then hopefully they will be there again when we are back at the Brandywell."
Martin said the pitch was looking fantastic and said so much work has gone on behind the scenes to ensure the venue is ready to host a different sport.
"A Gaelic pitch is a lot bigger than a soccer pitch, so the Gaelic posts will stay in place as they are anchored into the pitch as it's not practical to move them, so they will remain on the field," he said.
"Our soccer posts have been put in and placed further inside the pitch to match the same perimeter size as the Brandywell."
Martin said there was a real buzz across the city for match tickets and they estimate about 7,000 spectators will turn up.
"We are restricted with the amount we can fit into the Brandywell, we can fit in about 4,500 spectators there, but because this is a bigger venue we expect around 7,000."
As a former Derry City player in the 90s and now a Gaelic football coach, Ryan Coyle knows what it is like to have a foot in both camps.
Coyle famously scored the winning goal when Derry City beat Celtic 3-2 at Lansdowne Road in 1997.
He is fully behind the GAA hosting the soccer match and believes it can have mutual benefits for both sports.