United’s two-goal burst gave them the platform to dictate the contest, but Brighton’s response exposed how quickly that advantage disappeared.
Kostoulas, Gross and De Cuyper sharing the scoring underlined Brighton’s collective response. This was not a single moment of brilliance deciding the tie; it was a sustained reversal after United had seized command.
For Carrick, the concern is not simply that United lost a cup match. It is that a side capable of producing a fast 2-0 lead could not protect it once Brighton changed the rhythm.
The manager will face questions over United’s reaction after conceding. Early goals can create belief, but they also demand control. Brighton’s three unanswered goals turned a promising start into another early elimination, leaving United with no opportunity to repair the damage over a second leg.
The defeat also increases the importance of the next league fixtures. United now need a composed response rather than another high-tempo opening followed by a loss of control.
Brighton leave the tie with the stronger narrative: they absorbed a two-goal setback and found three different scorers to complete the comeback. United’s next test is whether this collapse remains an isolated cup failure or becomes an early-season pattern.
The next fixture will offer Carrick and his players a chance to show that the response after this defeat can be more convincing than the response during it.