Besiktas started their quest to qualify for the knockout stages of the Champions League in fine style as they claimed a surprise 3-1 win at Porto on Wednesday.
The Super Lig champions have never gone beyond the group stages of Europe's premier club competition in its modern guise, but made their ambitions clear this close-season by bringing in the likes of Pepe, Gary Medel and Alvaro Negredo.
And Besiktas now sit top of Group G after seeing off Porto at Estadio do Dragao, with Cenk Tosun's somewhat fortuitous long-range strike putting last season's Europa League quarter-finalists into a lead they would not relinquish.
Anderson Talisca, on loan from Porto's Primeira Liga rivals Benfica, will have drawn further ire from the home fans when he headed Besiktas in front in the 13th minute.
Porto levelled eight minutes later through Dusko Tosic's own goal but Tosun quickly hit back in the 28th minute.
Former Real Madrid goalkeeper Iker Casillas managed to let Tosun's effort evade his grasp, and he was equally at fault as Ryan Babel scored Besiktas' third goal of a victory that moves them two points clear at the top after RB Leipzig and Monaco drew 1-1.
Besiktas had the better of an open start to proceedings and Babel saw a curling effort deflected over the crossbar before Talisca broke the deadlock.
The Brazilian timed his run into the box perfectly to meet Ricardo Quaresma's right-wing cross and power a close-range header beyond Casillas.
Porto responded well and Oliver Torres hit the post at the end of an attack started by a magnificent long ball from Casillas.
And the hosts were gifted an equaliser two minutes later as Tocic headed Alex Telles' corner from the left in at the near post.
Jesus Manuel Corona then had a tame effort from a tight angle kept out by Fabri as Porto looked to complete the turnaround.
But they instead fell behind once more, with Casillas at fault as Besiktas retook the lead.
Tosun let fly with a long-range swerving effort that Casillas failed to keep out despite getting a hand to the shot.
Tiquinho Soares curled narrowly wide from 20 yards out as he sought to restore parity once more before Oguzhan Ozyakup slipped and fired wide at the other end after finding himself in space in the box.
Porto made a double change before the start of the second half as Otavio and Andre Andre were brought on for Torres and Corona.
And they increased the pressure on the Besiktas goal as Tiquinho latched on to a Yacine Brahimi throughball only to be denied by Fabri, before Ivan Marcano had a goal-bound header blocked on the line.
Besiktas weathered that storm, though, and the visitors added late gloss to the scoreline as another Casillas error allowed Babel to make the game safe by finding the bottom-left corner.
|Injured Mathews out of opening Pakistan Test|
|Double leg break victim Rossi to attempt incredible Aragon GP return|
|Barcelona condemn Spanish crackdown on Catalonia independence vote|
|Muguruza marches past Puig, Pliskova and Kerber progress in Tokyo|
|Benzema seals Real Madrid stay until 2021|
|Smith defends captaincy ahead of landmark ODI|
|Perisic promised Inter can match Manchester United|
|The race is on - Aubameyang lays down Lewandowski challenge|
|Cristiano Ronaldo´s Real Madrid return confirmed|
|Bellew tells Haye ´I oblige you´|
|Mbappe can prove he´s ready for Madrid at PSG - Morientes|
|Five-year ban for Pakistan batsman Latif|
|PSG ´destroyed the market´ with Neymar and Mbappe - Elber|
|Bulldogs chairman says sacked Hasler will not be compensated|
|Coutinho withdrawal inspired Leicester to victory, claims Shakespeare|
|Windies opener Brathwaite cleared to bowl|
|Valverde hopes Suarez benefits from Eibar rest|
|Wilshere returning to his best form - Wenger|
|Yankees, Cardinals keep pace in postseason race|
|Klopp: Liverpool are still a good football team|
|Pochettino hails ´top player´ Alli|
|Messi from ´another planet´, says Semedo|
|James performance pleases Ancelotti|
|Gordon´s homer breaks MLB single-season home run record|
|Spieth feeling good ahead of Tour Championship|
|Thomas unsurprised by stunning season|
|Lakers confirm Bogut signing|
|Maestro Messi brings up 300 Camp Nou goals|
|Saints trade 2015 first-round pick Anthony to Dolphins|
|Messi is extraordinary – Valverde hails Barcelona star|
|Inter eyeing Champions League return - Eder|
|UCI reduces Grand Tour team sizes|
|Klopp ´sick´ of conceding as Liverpool tumble out of EFL Cup|
|Hodgson urges caution over Souare handling|
|Gasquet stunned by Istomin in Metz|
|Barcelona 6 Eibar 1: Majestic Messi leads romp with four goals for LaLiga leaders|
|Burnley 2 Leeds United 2 (aet, 3-5 pens): Lonergan the penalty hero as Championship leaders cause cu|
|Matic and Fellaini have never been this good – Mourinho tells Carrick, Herrera to be patient|
|I´m the first to trust young players - Conte defends Chelsea youth record|
|Inconsistent Windies disappoint Holder|
|Bairstow pleased to take ODI chance|
|Tottenham 1 Barnsley 0: Alli sees off stubborn Tykes|
|Bologna 1 Inter 1: Contentious Icardi spot-kick maintains Spalletti´s unbeaten run|
|Leicester City 2 Liverpool 0: Okazaki, Slimani dump Klopp´s men out of EFL Cup|
|Schalke 0 Bayern Munich 3: James scores on first Bundesliga start|
|Atletico benefiting from competition of fringe players - Simeone|
|England centurion Bairstow ends West Indies´ World Cup hopes|
|Manchester City have got two players for every position - Delph|
|Peng digs deep to avoid Guangzhou upset|
|Youzhny and Troicki battle through in St. Petersburg|
|Rossi close to Aragon return after completing 20 laps|
|Bayern could say they don´t need me – Lewandowski accepts football´s cut-throat nature|
|PGA Tour releases 2017-18 schedule|
|Wasps dealt blow as Cipriani ruled out for 12 weeks|
|Montella to keep on rotating as he plans for long season|
|Billionaire investor announces he is ´done´ funding Hamburg|
|Van Vleuten leads Dutch one-two in Bergen time trial|
|World Cup success Gibson´s top priority with South Africa|
|Philander sidelined for first Bangladesh Test|
|Wenger confirms Welbeck groin injury|
|Ljungberg sad to leave Wolfsburg|
|Ferdinand, McGregor and Curry - Sport´s most notable crossover stars|
|Will Bellew put pen to paper? - Haye claims terms for rematch agreed|
|Messi has his story, I have mine - Dybala plays down compatriot comparisons|
|Hazard to start against Nottingham Forest as Conte prepares to rotate|
|New Real Madrid contract ´already done´ for Zidane|
|´Fresh´ Froome ready for Bergen time-trial challenge|
|Chelsea won´t appeal David Luiz red card, Conte confirms|
|Cibulkova on form in Tokyo|
|Mbappe and Dembele lead Golden Boy nominees|