Teenager Evan Ferguson scored twice to send Brighton through to their third FA Cup semi-final and bring Grimsby Town’s dream run to an end at the Amex Stadium.
Deniz Undav put the hosts in front after six minutes, following in to slot past Max Crocombe after the visiting goalkeeper had parried Moises Caicedo’s shot.
Without being at their best, Roberto de Zerbi’s side controlled the game throughout and Ferguson added a superb second fives minutes into the second half.
The 18-year-old striker stretched to bring down Alexis Mac Allister’s clipped pass with his left foot, set himself and then stroked the ball into the bottom corner.
Ferguson burst through to score his second on 70 minutes, Solly March made it four with a diving header and Kaoru Mitoma’s deflected 90th-minute strike crept in at the near post to complete the scoring.
Grimsby had knocked out five teams from divisions above them to reach their first FA Cup quarter-final for 84 years but for all their defensive discipline in the first half, the League Two side’s attacking threat was extremely limited.
Brighton keeper Robert Sanchez nearly gave them a way into the game when he appeared to pick the ball up outside his area under pressure, but a VAR check concluded that the ball was just on the line when he did so.
Substitute John McAtee had Grimsby’s two chances of note, trying to lift the first over Sanchez and seeing the second pushed around the post by the Spaniard in the closing stages.
While the margin of victory could have been greater, with Mitoma missing a gilt-edged chance and Adam Webster hitting the bar, the Seagulls can now look forward to a trip to Wembley and a first semi-final since 2019.
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Brighton & Hove Albion
Squad number1Player nameSánchez
Squad number13Player nameGroß
Squad number4Player nameWebster
Squad number5Player nameDunk
Squad number30Player nameEstupiñán
Squad number25Player nameCaicedo
Squad number10Player nameMac Allister
Squad number7Player nameMarch
Squad number21Player nameUndav
Squad number22Player nameMitoma
Squad number28Player nameFerguson
Squad number6Player nameColwill
Squad number18Player nameWelbeck
Squad number19Player nameSarmiento
Squad number26Player nameAyari
Squad number29Player namevan Hecke
Squad number1Player nameCrocombe
Squad number2Player nameEfete
Squad number26Player nameSmith
Squad number6Player nameWaterfall
Squad number31Player nameMaher
Squad number3Player nameDriscoll-Glennon
Squad number15Player nameClifton
Squad number4Player nameGreen
Squad number8Player nameHolohan
Squad number11Player nameKhan
Squad number20Player nameOrsi
Squad number10Player nameMcAtee
Squad number16Player nameHunt
Squad number17Player nameMorris
Squad number29Player nameTaylor
Squad number30Player nameKhouri
- 5DunkSubstituted forvan Heckeat 78′minutes
- 30EstupiñánSubstituted forColwillat 45′minutes
- 10Mac AllisterSubstituted forAyariat 78′minutes
- 21UndavSubstituted forSarmientoat 71′minutes
- 28FergusonSubstituted forWelbeckat 72′minutes
- 29van Hecke
- 15CliftonSubstituted forMorrisat 71′minutes
- 4GreenSubstituted forMcAteeat 45′minutes
- 8HolohanSubstituted forKhouriat 84′minutes
- 11KhanSubstituted forTaylorat 71′minutes
- 20OrsiSubstituted forHuntat 45′minutes
- Jarred Gillett