Spartak Moscow are likely to face a UEFA investigation after supporters fired a flare that narrowly missed the referee during their 1-1 draw at Maribor in the Champions League.
The Russian champions had survived Maribor's lively start to the game when a firework projected from the Spartak fans travelled more than half the length of the pitch and landed not far from referee Deniz Aytekin's feet.
Should the club be disciplined it will further compound their disappointment after Damjan Bohar's late equaliser denied them a winning return to the Champions League group stage after a five-year absence.
Second-half substitute Aleksandr Samedov gave Spartak the lead just before the hour mark as smoke continued to billow from the area in which the visiting supporters were seated, but Bohar levelled the game with a fine finish in the 85th minute to spark wild celebrations from the home crowd.
Maribor will be hard pressed to take points from their remaining five Group E games - with matches against Liverpool and Sevilla to come - but coach Darko Milanic saw his charges put in a spirited performance that might have yielded more than just a point had they taken their chances.
Martin Milec drew an early save from Artyom Rebrov in the Spartak goal when he cut inside from the right flank in the first minute and struck a bouncing shot that the goalkeeper could only parry away.
Play swung from end to end in the game's early stages and Andrey Eshchenko blazed a shot over the crossbar after a dangerous run by Quincy Promes, but the home side were in the mood to attack and Valon Ahmedi let fly from 25 yards after 10 minutes, forcing another good save from Rebrov.
Spartak's quality began to show after 25 minutes when a flowing passing move saw Mario Pasalic freed Promes, whose flick put Eshchenko one-on-one with Jasmin Handanovic, but the winger lofted his shot high of the target.
Promes is Spartak's top goal-scorer this season and he almost added another to his tally with a dipping drive from 20 yards that flew just wide on the half hour mark, as Maribor ended the first half with little of the energy and verve they had shown early on.
Spartak brought on Samedov at half-time and four minutes into the second half he danced into the penalty before chipping a shot narrowly over the crossbar.
His introduction proved decisive 10 minutes later when he latched onto the rebound after Handanovic saved Fernando's shot and rifled the ball high into the net, prompting explosive celebrations from the Spartak supporters.
Bohar almost equalised immediately with a close-range header that Rebrov saved at full stretch, and Maribor full-back Mitja Viler sent an angled drive whistling past the post after 68 minutes as the hosts pushed hard to salvage a point.
Fernando should have made it 2-0 when Luiz Adriano teed him up for a one-on-one with Handanovic, but the Brazilian midfielder dragged his shot wide. Promes tried his luck with an audacious free-kick from 30 yards, but Handanovic rose well to save.
But Maribor never gave up and with five minutes left they were rewarded when Martin Kramaric played the ball out to Bohar on the left side of the Spartak penalty area and the midfielder unleashed an unstoppable drive into the far corner of the net to earn his side a precious point.
|History against England in Brisbane, as Cook targets Gabba milestone - the Ashes in Opta facts|
|I wanted to cry with Buffon - Rakitic sympathy for Italy great|
|Defiant Smalling responds to ´surprise´ England omission|
|Hughes ruled out of Samoa clash as Watson, Joseph omitted|
|MLB great Joe Morgan urges voters not to elect steroid users to Baseball HOF|
|Neuer ´on schedule´ but Heynckes won´t rush Bayern star|
|Messi contract saga not swaying Barcelona boss Valverde|
|Spartak Moscow 1 Maribor 1: Stoppage-time equaliser gives Russians everything to do at Anfield|
|Besiktas 1 Porto 1: Talisca leveller sends hosts through|
|Grand slams to reduce seeds from 32 to 16 from 2019|
|Mkhitaryan questions leave Mourinho riled|
|Jones out of Basel, Brighton games but Mourinho hopeful on Bailly|
|The Scrum-back Kid? Philips answers Scarlets SOS|
|Moore to retire from all rugby following Murrayfield Test|
|The Ashes: Australia and England leap into chasm of unknowns|
|Conte unhappy with Chelsea´s fixture congestion|
|Pepe tells Ronaldo: Come to Besiktas!|
|Clement expects Abraham to shake off back injury for Bournemouth clash|
|Oddo replaces sacked Del Neri at Udinese|
|F1 Raceweek: Contract talks for Hamilton, Alonso at Le Mans and Kvyat´s snub|
|Bartomeu hints at January Barcelona signings|
|Davis Love III to have hip-replacement surgery|
|Massa eyes final flourish in Abu Dhabi|
|Bears TE Zach Miller out of hospital three weeks after serious injury|
|Emery defends ´responsible´ Neymar from lifestyle criticism|
|Wales lose Williams and Cuthbert for All Blacks clash|
|Australia enlist Bolt to sharpen up Ashes preparations|
|Wimbledon will not be the same without her – Duchess pays tribute to Novotna|
|Del Neri sacked by Udinese|
|Everton striker Niasse facing two-match ban after FA diving charge|
|Wyatt makes history as England salvage Women´s Ashes draw|
|Lampard excited by English clubs in Champions League|
|Kvitova ready for ´second career´ to start in 2018|
|Williams deny Kubica deal has been agreed|
|Thiago and Coman back for Bayern´s trip to Anderlecht|
|Prior launches second Lyon attack|
|Dybala hails Messi as ´our Maradona´, wants to play with Neymar|
|Stokes has let England down - Warner wades in ahead of Ashes opener|
|Sherwood talks up Spurs as potential Champions League winners|
|Borussia Dortmund on the brink as Real Madrid eye progress - Champions League in Opta numbers|
|Hughton hopeful on video assistance after Brighton denied penalty|
|Klopp staying calm over Salah form|
|Irving leads Celtics to 16th straight win|
|He Said What?! The Best NFL quotes of week 11|
|They don´t have magic balls – Cook plays down Australia pace attack|
|Falcons hold off Seahawks|
|Griezmann: I don´t regret staying at Atletico|
|Rogers tells Paine to enjoy Ashes: It´s just a game!|
|Warner ready for first Ashes Test despite neck injury|
|Ashes newcomer Bancroft thought Test chance was gone - Voges|
|Warner suffers injury scare ahead of Ashes|
|Guardiola dismisses Champions League favourites tag|
|Jackson excited about Gordon´s return: I get to open a new toy|
|Nuggets head coach Malone suspended for one game|
|Steelers OT Gilbert handed four-game PED suspension|
|Prior hits back at ´ridiculous´ claims as Lyon hopes Australia end careers|
|Dolphins QB Cutler placed in concussion protocol|
|Navratilova leads tributes to ´amazing´ Novotna after her death at 49|
|Brighton and Hove Albion 2 Stoke City 2: Gross, Izquierdo extend home unbeaten run|
|Dimitrov braced for Australian Open expectations|
|Broncos fire offensive coordinator Mike McCoy|
|England won´t suffer Gabba ambush, Malan claims|
|Rose in contention to face Dortmund as Pochettino denies ´issue´ with defender|
|Benzema knows he can give more – Zidane|
|I´ve fulfilled my dreams already – Klopp has no plans to coach Barcelona|
|Memorable Ashes Moments: Unlikely saviour Agar falls agonisingly short|
|Wallabies coach Cheika faces investigation|
|The Ashes: Australia squad profiles|
|Aubameyang will face Tottenham, Bosz confirms|
|Klopp expects Matip to face Chelsea, Lallana return getting ´nearer´|