Garry Monk will lead Swansea City against local rivals Cardiff City later, just days after taking over as head coach.
It will be the first time the two clubs have met since November, when a second half goal from Steven Caulker secured a victory for Cardiff at home.
The Swans are on a miserable run of one win in 10 league games and lie just two points above the relegation zone.
Monk, who played for Swansea in all four divisions, knows there is no better time for the squad to pull together as Cardiff seek to make history by becoming the first side to do the league double in this fixture.
"You have seen my thoughts on the derby before. It's massive," he said.
"The circumstances make it even bigger but we are focused on the football now. We lost the first game at their place and they will want to do us at our place. These are the sorts of games you want to play in and be a part of.
Ole Gunnar Solskjaer will also be leading his Cardiff City side in a derby for the first time, after taking over from Malky Mackay last month.
Speaking to ITV Cymru Wales' In Touch programme earlier this week, he said: "We know it's going to be very tough. We know we're going to play a Swansea team who've just lost their manager, so they're going to batten down the hatches and make sure they stick together."