A second-half header from Cesc Fabregas gave Barcelona a 1-0 victory in a fiery UEFA Champions League clash against 10-man Celtic on Tuesday.
Fabregas found the net 14 minutes from time as the Liga champions took advantage after Scott Brown had been sent off in controversial circumstances just before the hour mark.
Celtic - who overcame Barcelona 2-1 in last season's competition - created the better chances for much of the encounter, but they were left to rue Brown's dismissal, which came following a clash with Neymar.
They were ultimately made to pay as former Arsenal man Fabregas struck to end their hopes of a repeat of last year's heroics.
Celtic made just one change to the side that beat Kilmarnock 5-2 at the weekend, midfielder Mikael Lustig coming in for Teemu Pukki.
The visitors, meanwhile, had to cope without talisman Lionel Messi, who missed out due to a hamstring injury, with Neymar replacing him at the head of the attack. Xavi came back into the side in place of Alexis Sanchez.
Barcelona dictated possession in the early stages, but it was Celtic who created the game's first chance, Georgios Samaras forcing a near-post save from Victor Valdes after being played through by Anthony Stokes.
Despite their dominance, it took Barca 16 minutes to craft their first opportunity as Neymar fired wide from range.
Andres Iniesta and Adriano then both saw chances go begging, although Celtic goalkeeper Fraser Forster still had little to do in the first half as Gerardo Martino's men laboured to try and find a way through.
However, the Catalan club went close to taking the lead five minutes before the break when Neymar turned Dani Alves’ right-wing cross narrowly wide of the post.
The hosts made the better start to the second half as they pushed to try and take an unlikely lead, but their hopes were dealt a huge blow when midfielder Brown was sent off in the 59th minute for appearing to kick Neymar in the back after the 28-year-old had brought down the Brazilian following his surging run into the Celtic half.
Barcelona unsurprisingly seized control once again from there as they looked to make their numerical advantage count.
Still, Celtic defended resolutely, with Barca reduced to speculative efforts from Marc Bartra and Fabregas.
Neil Lennon's men did look dangerous on the break despite Brown's dismissal and James Forrest forced a fine diving save from Valdes after 73 minutes before Charlie Mulgrew headed wide from the resulting corner.
But the hosts’ strong resistance was finally broken by a superb Barcelona counter-attack a few moments later as Fabregas met substitute Alexis' pin-point cross with an excellent header that looped beyond Forster and into the net.
Forster produced a fine double save to deny Neymar and Alexis in quick succession, before again preventing Neymar from adding a second, as one proved to be enough for Martino's men.
|5||V. van Dijk|
|Coach: N. Lennon|
for A. Stokes 70'
for M. Lustig 70'
for K. Commons 86'
|MLS Preview: Revs not out for revenge against Galaxy|
|MLS Review: Sounders go top in West, Timbers and Galaxy win|
|AFC stands by Blatter|
|Matheus ´alright´ after collapse - Markevych|
|Copa Libertadores Review: River, Inter through to semis|
|Signing Toni a ´long shot´ for Adelaide|
|Ramsey good enough for Barca - Coleman|
|Bacuna pushing for Benteke stay|
|Evans stunner settles City friendly in Toronto|
|Banega: Emery a great coach|
|Emery tight-lipped on Sevilla future|
|Argentina finalise Copa America squad|
|Nike issues statement following arrest of FIFA officials|
|Hero Bacca grateful for Europa League triumph|
|Markevych rues defensive errors in Dnipro defeat|
|AFC Champions League Review: Naft Tehran fairytale continues|
|Emery: We deserved Europa League success|
|Dnipro 2 Sevilla 3: Bacca brace sees holders make history|
|South Africa 0 Malawi 0 (4-5 on penalties): Harawa heroics send Bafana Bafana out|
|CONCACAF and CONMEBOL respond to arrests in FIFA scandal|
|FIFA president Blatter welcomes investigations as corruption probe rocks world football|
|UEFA calls for FIFA elections to be postponed|
|BREAKING NEWS: Advocaat exits Sunderland and retires from club management|
|La Liga: Real Madrid season review - Ancelotti pays the price for disappointing season|
|Zambia 3 Ghana 0: First-half spree does the damage|
|Barnes suffers double knee ligament injury|
|Balotelli to stay at Liverpool - agent|
|Kane at the double in friendly win|
|Norwich make Dorrans switch permanent|
|Ings unsure of next move|
|Bournemouth snap up Federici|
|FIFA ´crisis´ cannot continue - Prince Ali|
|Barton headlines QPR exits|
|Juan demands more from Inter|
|Stoke snap up Haugaard|
|Subotic commits to Dortmund|
|Warner pleads innocence after US indictment|
|Napoli to refuse questions on Benitez´s future|
|USDoJ names indicted FIFA officials|
|Wenger coy over Vidal and Benzema moves|
|Suarez back in training ahead of Copa final|
|Pique: I´ll retire at Barca|
|Gerrard ´blown away´ by Liverpool send-off|
|FIFA ´very happy´ with Zurich arrests|
|Liverpool defender Toure targeting trophies|
|Ramsey eyeing title assault|
|Welbeck out of FA Cup final and England matches|
|FIFA the ´injured party´ as Swiss prosecutors open criminal proceedings|
|Prince Ali saddened by FIFA arrests|
|Pellegrini to make City defence a priority|
|Labbadia giving Lasogga, Olic, Jiracek time|
|Ramsey confident on Wembley chances|
|Swiss authorities confirm FIFA arrests|
|El Shaarawy open to Premier League move - agent|
|Reports: FIFA officials set to be arrested|
|Tigres UANL 2 Emelec 0 (2-1 agg): Mexicans through to Libertadores semis|
|Valencia ruled out of Copa America|
|Coleman: Bale being ignored by Real team-mates|
|Ruddy eyes England recall|
|Benteke will strike fear into Arsenal - Westwood|
|Howe named LMA Manager of the Year|
|Casillas reiterates desire to stay in Madrid|
|Dnipro players pay for fans´ tickets, transport|
|Galliani: I want Ancelotti back at Milan|
|Premier League: Manchester City season review - Frustrations as latest title defence falters|
|Injured Benfica star Salvio not for sale|
|AFC Champions League Review: Al Sadd suffer last-16 exit|
|Emery targeting historic victory|
|Toure and Wisdom pen new Liverpool deals|
|Stadium facilities drive Van Gaal potty|
|Blatter brushes off Figo´s ´dictatorship´ claims|
|Mavuba to end career at Lille after extending contract|
|Ipswich´s Bishop charged over betting breaches|
|Markevych admits to Dnipro nerves|
|Relegated Almeria to be deducted three points|
|Reims retain Guegan on one-year deal|
|Di Matteo departure could hinder Schalke swoop for Khedira|
|Bale planning Real Madrid stay|
|Del Bosque not prepared to risk Costa|
|West Ham earn Europa League berth|
|Pellegrini sure City will win title back|
|Low calls Herrmann into Germany squad|
|Gerrard will win trophies with Galaxy - Carragher|
|Frankfurt agree to let Schaaf leave|
|Hernandez hit with violent conduct charge|
|Bale set for 50th Wales cap against Belgium|
|Baines hoping for pre-season return|
|Bournemouth sign Boruc|
|Sevilla duo Rico and Vidal handed Spain calls|
|Premier League: Chelsea season review - Mourinho´s men canter to title|
|Speroni hints at possible Palace exit|
|Kane states Tottenham commitment|
|Boruc, Hooiveld leave Southampton|
|Oxlade-Chamberlain desperate to make FA Cup final|
|Roar turn to Aloisi|
|Di Matteo resigns as Schalke coach|
|Hughes hints at Moses return|
|Wenger hits out at scheduling|
|Terry backs Chelsea to dominate|
|Jets part ways with coach Stubbins|
|Kewell would love to manage Liverpool|
|Janmaat: Newcastle players failed Carver|
|Adelaide step up interest in Toni|
|Chelsea´s Drogba interested in MLS move|
|Otamendi wants to leave Valencia - agent|
|Benitez almost certain for Real job|
|Schneiderlin will leave for Champions League club|
|Kane planning to come back bigger and better|
|Moyes staying at Sociedad|
|Neil revels in Norwich promotion|
|Drogba interested in MLS move|