Liam Cullen and Matt Grimes claimed two goals apiece as Swansea City cruised into the FA Cup fifth round with a 5-1 thrashing of Nottingham Forest.
Oli Cooper's late fifth ensured Swansea reached the last 16 for the third time in four seasons.
They will host either Manchester City or Cheltenham Town next.
Their progress was rarely in doubt against Forest, with Steve Cooper's side winning the battle of two much-changed sides with ease.
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Swansea had already beaten Forest in the Championship this season, where the Welsh club are chasing promotion while Chris Hughton's men are attempting to pull clear of a relegation scrap.
Hughton made 10 changes compared with Cooper's seven on Saturday, and it was Forest's second string who were quickly on the back foot as Wayne Routledge broke the offside trap and centred for academy product Cullen to volley home only his second Swansea goal.
Jamal Lowe - an early replacement for the injured Routledge - saw a heavy touch cost him the chance to double the lead, before Swansea skipper Grimes found the target from 25 yards, his spectacular drive flashing into the net with Jordan Smith motionless in the Forest goal.
The visitors briefly improved after the break, hauling themselves back into the contest when Joe Lolley's persistence down the left allowed Anthony Knockaert to drill home from close range.
But Forest's hopes of a comeback did not last long, as Ryan Manning tumbled under Joe Worrall's challenge and Swansea were awarded a contentious penalty.
Grimes stepped up to send Smith the wrong way from the spot, before Cullen scored the goal of the day after good work from Yan Dhanda and Manning.
Swansea finished with 10 men after Cullen limped off with an ankle injury, but that did not stop substitute Cooper marking only his second senior appearance with his first goal at this level, a left-footed shot which went through Smith's legs and squirmed over the line.
- Line-upsMatch StatsLive Text
Line-upsSwansea
Formation 3-4-1-2
1Woodman22Latibeaudiere2Bennett5Guehi23Roberts14Hourihane8Grimes3Manning21Dhanda15Routledge20Cullen
- 1Woodman22Latibeaudiere2Bennett5GuehiSubstituted forBidwellat 66'minutes23RobertsSubstituted forGarrickat 76'minutes14HourihaneSubstituted forCooperat 66'minutes8GrimesSubstituted forFultonat 65'minutes3Manning21DhandaBooked at 90mins15RoutledgeSubstituted forLoweat 20'minutes20CullenSubstituted forat 79'minutes
Substitutes
- 6Fulton9Lowe10A Ayew24Bidwell26Naughton31Cooper41Garrick42Webb44Cabango
Nottm Forest
Formation 4-2-3-1
12Smith16Jenkinson3Figueiredo4Worrall13Bong6Mbe Soh14Bachirou28Knockaert15Freeman23Lolley33Taylor
- 12Smith16JenkinsonBooked at 10mins3Figueiredo4WorrallBooked at 69mins13BongSubstituted forBlackettat 76'minutes6Mbe Soh14BachirouSubstituted forRibeiro Diasat 45'minutes28KnockaertSubstituted forMightenat 76'minutes15FreemanSubstituted forGuerreroat 45'minutes23Lolley33Taylor
Substitutes
- 2Christie7Grabban11Ameobi17Mighten18Ribeiro Dias19Guerrero20Dawson24Blackett30Samba
Referee:Kevin FriendMatch StatsHome TeamSwanseaAway TeamNottm ForestPossessionHome48%Away52%ShotsHome17Away15Shots on TargetHome9Away2CornersHome4Away11FoulsHome9Away12Live TextPost update
Match ends, Swansea City 5, Nottingham Forest 1.
90'+3'Full Time
Second Half ends, Swansea City 5, Nottingham Forest 1.
90'+2'Post update
Foul by Carl Jenkinson (Nottingham Forest).
90'+2'Post update
Oliver Cooper (Swansea City) wins a free kick in the defensive half.
90'+2'Post update
Corner, Nottingham Forest. Conceded by Oliver Cooper.
90'+1'Post update
Joe Lolley (Nottingham Forest) wins a free kick in the attacking half.
90'+1'Post update
Foul by Oliver Cooper (Swansea City).
90'+1'Post update
Tyler Blackett (Nottingham Forest) wins a free kick in the defensive half.
90'+1'Post update
Foul by Jamal Lowe (Swansea City).
90'+1'Booking
Yan Dhanda (Swansea City) is shown the yellow card.
90'Post update
Foul by Tyler Blackett (Nottingham Forest).
90'Post update
Jordan Garrick (Swansea City) wins a free kick on the right wing.
84'goalGoal!
Goal! Swansea City 5, Nottingham Forest 1. Oliver Cooper (Swansea City) left footed shot from the left side of the box to the centre of the goal.
84'Post update
Attempt blocked. Jamal Lowe (Swansea City) right footed shot from outside the box is blocked.
81'Post update
Attempt missed. Miguel Ãngel Guerrero (Nottingham Forest) header from the centre of the box is close, but misses to the right. Assisted by Carl Jenkinson with a cross.
79'Post update
Foul by Oliver Cooper (Swansea City).
79'Post update
Miguel Ãngel Guerrero (Nottingham Forest) wins a free kick in the defensive half.
79'Post update
Liam Cullen went off injured after Swansea City had used all subs.
77'Post update
Corner, Swansea City. Conceded by Jordan Smith.
77'Post update
Attempt saved. Oliver Cooper (Swansea City) right footed shot from the centre of the box is saved in the centre of the goal. Assisted by Jordan Garrick.
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