There will be tension in the air when Cardiff City host Swansea City this weekend, with Welsh football's biggest club contest bringing its usual blend of apprehension and anticipation.
The fact that neither team has anything significant to play for in the final stages of the Championship season is irrelevant.
The derby always matters.
This is the game for both clubs to win, with Swansea chasing the first league double in the history of the fixture.
Yet on the touchline at least, the atmosphere may be a little friendlier than normal.
Cardiff boss Steve Morison and Swansea's Russell Martin are former team-mates who enjoyed a successful spell together at Norwich City.