Swansea progressed to the group stage of the UEFA Europa League despite losing 2-1 to Petrolul in the second leg of the play-off round.
Hamza Younes proved to be the matchwinner for the hosts on Thursday, the Tunisian netting late in the second half after Roland Lamah had cancelled out Njongo Priso's opener.
Leading 5-1 from the first leg, Swansea made five changes to the team that lost 1-0 to Tottenham in the Premier League last Sunday, as boss Michael Laudrup rested several key players ahead of their upcoming clash with West Brom.
It took 18 minutes for Laudrup's men to craft their first real opening of the game, forward Rory Donnelly firing wide after he was put through brilliantly by Michu.
Clear-cut opportunities proved few and far between in the opening period, with the hosts having to resort to the spectacular in their attempt to get back into the tie. Younes sent an acrobatic overhead kick inches over the bar just after the half-hour mark.
Petrolul, somewhat predictably given the deficit they faced, continued to force the issue, but struggled to find a way through an organised Swansea defence and midfielder Ovidiu Hoban wasted one of their better chances when he headed well wide from a corner.
The home side’s best opportunity came just two minutes before the break, as Younes' close-range effort was cleared off the line by Leon Britton - who was later sent off - after Gerhard Tremmel could only get a hand to the shot.
Swansea held out until the break and, although the Romanian outfit continued to force the issue in the early stages of the second half, it was the Premier League team who should have taken the lead.
Donnelly broke down the right only to see his cross-cum-shot strike the inside of the post.
Laudrup's side's quality began to tell in the second half as they took charge of a frenetic contest, but they continued to be wasteful in front of goal as Pablo Hernandez shot tamely into the hands of Mircea Bornescu from point-blank range.
Swansea were in control for much of the second period, but the goal that would cap a professional display continued to elude them. Donnelly eventually did have the ball in the back of the net, only to see his effort ruled out for handball.
Petrolul remained a threat despite Swansea's dominance, and they capitalised on some poor defending from the hosts to take the lead. Winger Priso broke through after being played onside by Chico Flores and coolly steered the ball past Tremmel.
However, the hosts' advantage lasted less than a minute, as Swansea substitute Lamah turned home Alejandro Pozuelo's free-kick at the far post to level things up.
Swansea's progress had been long since secured, but defeat on the night was confirmed when Younes headed home at the near post from Guilherme's left-wing cross before Britton was dismissed for a second bookable offence.
|20||N. Priso||14' 73'|
|Coach: C. Contra|
for F. Dore 46'
for Pablo 46'
for S. Mustivar 66'
|Tianjin deny Rooney bid but admit Aubameyang talks|
|Deportivo Saprissa 0 Pachuca 0: Champions League quarter-final evenly poised|
|Gameiro angered by substitution in Atletico win|
|´I give nothing for free´ – Mourinho tells Shaw to learn from Mkhitaryan|
|Champions League quarter-finals still possible for Monaco, says Silva|
|Guardiola asks me for more, more, more - Aguero happy to fight on at Manchester City|
|It was like ice hockey - Monaco vice-president stunned by Champions League clash|
|Proud Griezmann eyes more Atletico history|
|Toure marvels at Caballero heroics in Manchester City-Monaco thriller|
|Buffon hopes to play well against Casillas|
|Schmidt: It is easy to see how Atletico Madrid have reached two finals in three years|
|Falcao penalty miss was key – Jardim|
|Guardiola: If one team can score a thousand, million goals it is Monaco|
|Griezmann hails ´brilliant´ Gameiro as Atletico see off Leverkusen|
|Simeone all smiles after Atletico dismantle Leverkusen|
|Spot-kick revision pays off for Caballero|
|Championship Review: Huddersfield boost top-two hopes, Wednesday beaten|
|Toprak laments bad result as Leverkusen lose at home to Atletico|
|Aguero grapples for glory as strikers shine in Manchester City v Monaco|
|Bayer Leverkusen 2 Atletico Madrid 4: Simeone´s side in control|
|Manchester City 5 Monaco 3: Guardiola´s side prevail in all-time classic|
|AFC Champions League Review: Al Rayyan and Al Ahli off to winning starts|
|Ranieri: Sevilla game can be a turning point for Leicester|
|Allegri confirms Bonucci absence after row|
|Nuno confident Porto can beat Juventus|
|Matthaus encourages Gotze to stay at Dortmund|
|Martial: I love Manchester United and I want to stay|
|I would never force out Manchester United legend Rooney - Mourinho|
|Anderlecht insist Tielemans not leaving on the cheap|
|Leicester can´t afford to live in the past, warns Sampaoli|
|Porto´s home comforts, shot-shy Leicester & Sevilla meet - Champions League in Opta numbers|
|Puyol backs Barcelona for Champions League miracle|
|Sutton´s pie-munching keeper Shaw resigns|
|Coyle leaves struggling Blackburn|
|Sampaoli noncommittal on Sevilla future despite contract offer|
|Higuain backs Dybala to become ´among the best in the world´|
|Ancelotti escapes punishment for middle finger|
|Pie-eating Sutton goalkeeper´s antics under investigation|
|AFC Champions League Review: 2014 winners Wanderers thrashed, Hulk inspires 10 men|
|Zidane reveals Ronaldo´s favourite position|
|Lippi backs Allegri for Juve stay|
|Zidane: Isco knows I love him|
|Rooney returns to United training|
|Higuain confident Juventus can win Champions League|
|Giggs the dream pro-am partner for Manchester United fanatic McIlroy|
|Kane hopes Spurs can get used to Wembley|
|Hazard: I gave everything to come back|
|Like Cantona, Ibrahimovic embraces United pressure - Giggs|
|Wenger: Perez deserves more chances|
|Wenger denies using Sanchez was risky|
|Tite: I wish Messi was born in Brazil|
|Jardim praises ´great striker´ Falcao|
|Reported Barcelona target Sampaoli offered Sevilla extension|
|´Angry´ Messi didn´t celebrate because of criticism – Bauza|
|´He is going to have to do it himself´ – Guardiola backs Aguero|
|Toure backs Sterling and Sane for the top|
|Pique: Barcelona were in deep s*** when Luis Enrique arrived|
|Thoughts of Bayern mauling stopped Wenger from enjoying Arsenal FA Cup win|
|Sutton United 0 Arsenal 2: Perez and Walcott break minnows´ stern resolve|
|Walcott brings up 100 goals for Arsenal|
|Simeone will make late Oblak call for Leverkusen clash|
|AFC Champions League Review: In-form El Arabi gives Lekhwiya dream start, Diop saves Al Ahli|
|Fabinho disagrees with Guardiola over favourites tag|
|Guardiola hails Bielsa as best in the world|
|Jardim insists Monaco will not change style for Manchester City clash|
|Clattenburg´s Premier League career not over yet|
|Dortmund could renew Tuchel deal|
|Chicharito return to form boosts Schmidt´s Leverkusen for Atletico test|
|Iniesta sees Verratti as his successor - Matuidi|
|Ramos did not make history at Sevilla like me - Alves questions Real Madrid captain|
|Vertonghen feels Tottenham deserve silverware|
|Agent denies Lucas Perez exit claims|
|Barcelona forward Neymar to stand trial after losing appeal|
|City history can´t compare to United, Liverpool – De Bruyne wants to make Champions League impressio|
|Europa League the priority for United´s Mata as EFL Cup final looms|
|Winning the FA Cup ´may not save Wenger´|
|Falcao perfect for ´killers´ Monaco - Guardiola wary of Champions League threat to Manchester City|
|Ancelotti asked to explain middle finger gesture|
|Ribery closing in on Bayern Munich return|
|Nani eager for improving Valencia to tackle Real Madrid|
|Rashford eyes Chelsea revenge after huge FA Cup draw|
|Glorious Griezmann and Aguero´s knockout drought - Champions League in Opta numbers|
|Otamendi´s agent talks up Real Madrid switch|
|He has to get used to it – Montella reacts to Bacca boos|
|Low hopes to discover Germany´s Luis Suarez|
|Mourinho unsure if Rooney will recover for EFL Cup final|
|Rami rejects talk of Marseille switch|
|Tarnat tips Manchester City´s Sane to become Germany star|
|I don´t see why he should quit - Begovic tips Terry to continue|
|PSG ´weakened´ without Ibrahimovic, claims Monaco´s Bakayoko|
|Low believes in ´locksmith´ Gotze|
|No pain, no gain for Cristiano Ronaldo|
|Barcelona have no idea how to treat players - Dani Alves slams Camp Nou board|
|Low: Germany´s youngsters must be good enough to beat Messi and Ronaldo|
|Mandorlini replaces Juric at Genoa|
|Liverpool could face ´new´ Leicester – Klopp|
|Corchia excited by Bielsa arrival but Lille future remains uncertain|
|Wenger: I threw up after first loss as coach|
|Conte wants fairytale finish for Terry|
|Iniesta: Barcelona haven´t lost faith in Luis Enrique|
|Mourinho knew Ibrahimovic would be ´massive´ for United|
|Ter Stegen doesn´t understand Barcelona fans whistling|
|´He is doing a fantastic job´ – Bartomeu backs Luis Enrique|
|Guardiola slams ´unacceptable´ Wenger treatment|
|Spalletti: Roma goal machine Dzeko now believes he´s world class|
|Emery refuses to blame referee after PSG are held|
|Montella dedicates AC Milan win to Berlusconi|
|The players don´t need whistles – Luis Enrique hits out at fans|