Match ends, Brighton and Hove Albion 4, Portsmouth 0.
Three Brighton players scored their first goals in English football as they beat Portsmouth in the Carabao Cup.
Graham Potter's side visit Preston North End in the third round next week.
Alexis Mac Allister's powerful header opened the scoring and Alireza Jahanbakhsh smashed in a brilliant 20-yard shot into the roof of the net for the game's best goal.
Bernardo headed in from Pascal Gross' corner and Viktor Gyokeres drove in a fourth goal after finding space.
It was only Jahanbakhsh's third goal for Brighton in 38 appearances, with his previous two coming in the space of four days over last season's festive period.
Argentina midfielder Mac Allister, Brazilian defender Bernardo and Sweden forward Gyokeres all scored their first goals for the club, with the latter two also assisting goals.
None of them featured in Brighton's opening Premier League game, a 3-1 defeat by Chelsea.
Brighton dominated from the start and deserved their big victory.
They could have won by more with Bernardo firing over in the first half after Gyokeres' effort was saved.
Gross was denied by an excellent Jack Whatmough clearance off the line and Dale Stephens hit the post with a fine 20-yard strike.
Portsmouth rarely threatened with Sean Raggett's 82nd-minute header their first effort on target.
- 34VeltmanSubstituted forSandersat 68'minutes
- 6StephensSubstituted forat 85'minutes
- 16JahanbakhshSubstituted forRobertsat 68'minutes
- 13GroßBooked at 37minsSubstituted forGwargisat 77'minutes
- 10Mac Allister
- 6WhatmoughSubstituted forDowningat 71'minutes
- 11CurtisSubstituted forCannonat 63'minutes
- 9MarquisBooked at 40minsSubstituted forHarrisonat 63'minutes
- Matt Donohue
- Shots on Target
Second Half ends, Brighton and Hove Albion 4, Portsmouth 0.
Attempt missed. Marcus Harness (Portsmouth) right footed shot from outside the box is close, but misses to the right. Assisted by Ellis Harrison.
Attempt missed. Andrew Cannon (Portsmouth) right footed shot from the centre of the box misses to the right. Assisted by Ellis Harrison.
Attempt missed. Alexis Mac Allister (Brighton and Hove Albion) right footed shot from outside the box misses to the left. Assisted by Viktor Gyökeres.
Dale Stephens went off injured after Brighton and Hove Albion had used all subs.
Attempt saved. Sean Raggett (Portsmouth) header from very close range is saved in the top centre of the goal. Assisted by Cameron Pring with a cross.
Corner, Portsmouth. Conceded by Jason Steele.
Attempt saved. James Bolton (Portsmouth) header from very close range is saved in the top centre of the goal. Assisted by Cameron Pring with a cross.
Corner, Portsmouth. Conceded by Dale Stephens.
Attempt missed. Alexis Mac Allister (Brighton and Hove Albion) right footed shot from outside the box is close, but misses to the left from a direct free kick.
Substitution, Brighton and Hove Albion. Peter Gwargis replaces Pascal Groß.
Haydon Roberts (Brighton and Hove Albion) wins a free kick on the left wing.
Foul by Ryan Williams (Portsmouth).
Hand ball by Ellis Harrison (Portsmouth).
Foul by Pascal Groß (Brighton and Hove Albion).
Tom Naylor (Portsmouth) wins a free kick in the defensive half.
Substitution, Portsmouth. Paul Downing replaces Jack Whatmough.
Goal! Brighton and Hove Albion 4, Portsmouth 0. Viktor Gyökeres (Brighton and Hove Albion) left footed shot from the left side of the six yard box to the centre of the goal. Assisted by Bernardo with a headed pass.
Substitution, Brighton and Hove Albion. Haydon Roberts replaces Alireza Jahanbakhsh.