ShareBrighton will feature in the league phase of the Conference League after cruising past Tromso in the second leg of their play-off tie.Brighton booked their place in the league phase of the Conference League with a 4-0 victory over Tromso in the second leg of their play-off tie on Thursday.After a goalless first leg last week, Charalampos Kostoulas, Maxim De Cuyper, Mats Wieffer and Olivier Boscagli were all on target to cap a rampant display from Fabian Hurzeler's Seagulls.Kostoulas missed two quickfire chances in the fifth minute, with the second kept out by Jakob Haugaard, but the Tromso goalkeeper could do nothing when the Brighton forward curled into the far corner from outside the box in the 22nd minute.De Cuyper, who also netted in Brighton's Premier League rout of Aston Villa, then doubled the Seagulls' advantage just after the half-hour mark as he dispossessed Leon Hien in the opposition box before beating the goalkeeper.And it was 3-0 just five minutes later. After Kostoulas failed to control a driven cross from the left wing, Wieffer managed to take the ball into his stride before firing in to give Brighton plenty of breathing room.Brighton took their foot off the pedal after half-time, but they still managed to score a fourth late on; Boscagli, who had an earlier goal on the rebound ruled out for offside, saw a deflected strike from distance find the bottom-right corner to finish off a successful outing.Kostoulas' time to shine?This was as dominant a performance as Hurzeler could have hoped for, with his Brighton side accumulating 2.72 expected goals (xG), 2.22 of which came in the first half, while restricting Tromso to just 0.22 from five attempts.Kostoulas was responsible for eight of Brighton's 21 attempts in the second leg, while he also led his team-mates for touches in the box (14) and aerial duels won (5/6) to go along with his goal and assist.The 19-year-old was restricted to substitute appearances in the first leg of this tie and against Villa last weekend, though he has now given Hurzeler a selection headache ahead of Brighton's trip to Chelsea on Sunday.There was also an impressive performance from another teenager in Luka Vuskovic, who won a team-high eight duels (8/9), while also leading all Brighton players in possession won (six), interceptions (three) and completed passes (99).Brighton will feature in the league phase of the Conference League after cruising past Tromso in the second leg of their play-off tie.Brighton booked their place in the league phase of the Conference League with a 4-0 victory over Tromso in the second leg of their play-off tie on Thursday.After a goalless first leg last week, Charalampos Kostoulas, Maxim De Cuyper, Mats Wieffer and Olivier Boscagli were all on target to cap a rampant display from Fabian Hurzeler's Seagulls.Kostoulas missed two quickfire chances in the fifth minute, with the second kept out by Jakob Haugaard, but the Tromso goalkeeper could do nothing when the Brighton forward curled into the far corner from outside the box in the 22nd minute.De Cuyper, who also netted in Brighton's Premier League rout of Aston Villa, then doubled the Seagulls' advantage just after the half-hour mark as he dispossessed Leon Hien in the opposition box before beating the goalkeeper.And it was 3-0 just five minutes later. After Kostoulas failed to control a driven cross from the left wing, Wieffer managed to take the ball into his stride before firing in to give Brighton plenty of breathing room.Brighton took their foot off the pedal after half-time, but they still managed to score a fourth late on; Boscagli, who had an earlier goal on the rebound ruled out for offside, saw a deflected strike from distance find the bottom-right corner to finish off a successful outing.Kostoulas' time to shine?This was as dominant a performance as Hurzeler could have hoped for, with his Brighton side accumulating 2.72 expected goals (xG), 2.22 of which came in the first half, while restricting Tromso to just 0.22 from five attempts.Kostoulas was responsible for eight of Brighton's 21 attempts in the second leg, while he also led his team-mates for touches in the box (14) and aerial duels won (5/6) to go along with his goal and assist.The 19-year-old was restricted to substitute appearances in the first leg of this tie and against Villa last weekend, though he has now given Hurzeler a selection headache ahead of Brighton's trip to Chelsea on Sunday.There was also an impressive performance from another teenager in Luka Vuskovic, who won a team-high eight duels (8/9), while also leading all Brighton players in possession won (six), interceptions (three) and completed passes (99).