Fellow Serie A sides Atalanta and Lazio also won while Portugal's Vitoria Guimaraes began their match against Salzburg with not a single European player in the team.
AC Milan, Villarreal and Nice reached the knockout stage of the Europa League after posting wins on Thursday in the penultimate round of the group stage.
Here's your weekly digest of bizarre moments from around the world.
A lowdown on what's happening in Bollywood.
Serbia's Novak Djokovic, who beat Switzerland's Roger Federer to win his 16th Grand Slam title on Sunday:
Arsenal had scored 10 goals in two matches against BATE Borisov in the same competition in 2017 but never looked like being as prolific in the freezing temperatures of Belarus.
IMAGES from Australian Open matches played at Melbourne Park on Friday
Novak Djokovic claimed a fourth Wimbledon title in ruthless fashion as he beat giant South African Kevin Anderson 6-2, 6-2, 7-6(3) in the final.
In the category of top 10 cities, Chennai has been ranked ninth
Chelsea's Ruben Loftus-Cheek had a Europa League night to remember by scoring the first hat-trick of his career as the midfielder inspired them to a 3-1 home win over Belarus champions BATE Borisov on Thursday.
Rattled by embarrassing domestic defeats, Chelsea looked jittery before Olivier Giroud settled their nerves with a close range tap-in shortly after halftime at StamfordBridge following good work by N'Golo Kante and Willian in the build-up.
Chelsea reached the Champions League knock-out stage on Tuesday despite a 1-0 defeat by Basel in Group E after a late Mohamed Salah goal shocked the 2012 title winners, with Jose Mourinho saying they deserved to lose. Barcelona, without Lionel Messi but already into the last 16, went two goals down in Amsterdam but looked a different side in the second half after Ajax's Joel Veltman was sent off.
Real Madrid captain Sergio Ramos risks being hit with an extra game suspension which would rule him out of a potential Champions League quarter-final first leg after admitting he got booked on purpose in Wednesday's 2-1 win at Ajax Amsterdam.
India on Thursday secured Mexico's backing in its bid to become member of the Nuclear Suppliers Group as it aggressively scouted for support ahead of a crucial meeting of the 48-nation nuclear trading bloc in Vienna.
Atletico Madrid were handed a chance to avenge last season's Champions League final defeat by city rivals and record 10-times winners Real after the two sides were drawn together in the last eight on Friday. Paris St Germain and Barcelona were paired together having met in the group stage, with the French side winning in Paris and the Catalans coming out on top in Spain.
World athletics' governing body decided on Friday to maintain its doping ban on all Russian athletes, Sky News reported, quoting unnamed sources, leaving the country's hopes of competing in the Rio Olympics dependent on Olympic chiefs giving special dispensation at a meeting next week. The Council of the International Association of Athletics Federations (IAAF) was meeting in Vienna to decide whether to lift the ban after hearing from a task force that significant doping problems still existed in Russia. The suspension was first imposed in November and extended in March. A spokeswoman for Russia's athletics federation said she could not confirm the reports that the ban had been upheld.
Top 21 images of all the events of the week that was.
Red Star, who won the European Cup in 1991 and reached the latter stages the following season, finished second in Group H behind Arsenal who crushed BATE Borisov 6-0.
Factbox on Serbia's Novak Djokovic who won his sixth Australian Open men's singles title on Sunday.
A cold snap in Europe and parts of America has caused chaos and crippled the lives of thousands. There have been over 20 weather-related deaths across Europe -- with snow continuing to fall across the continent. In America, Washington was blanketed in white after the US capital was hit by its first snow of the year. Here are glimpses from the snow bomb.
Manchester United's woes deepened as stunning goals by Moussa Sow and Jeremain Lens gave Fenerbahce a 2-1 Europa League win on Thursday that left Jose Mourinho's side facing a battle to reach the knockout stages.
Napoli began their Europa League group stage campaign in scintillating fashion.
Factbox on Serbia's Novak Djokovic and Great Britain's Andy Murray who will contest his sixth Australian Open men's singles final on Sunday.
Lionel Messi marked his first start after injury with a goal in Barcelona's 1-1 draw at AC Milan in the Champions League on Tuesday while Fernando Torres got two as Chelsea thumped Schalke and Atletico Madrid's charge continued.
Manchester United captain Wayne Rooney did not have the faintest idea who Anthony Martial was when the Monaco forward was linked with a move to Old Trafford earlier this week, according to team mate Morgan Schneiderlin.
Barcelona and Atletico Madrid led a Spanish Armada into the Champions League last 16 with home wins on Wednesday and in-form Aaron Ramsey steadied Arsenal's boat with a battling win against rocky Borussia Dortmund.
IMAGES from the Euro 2020 qualifiers played on Thursday
Brilliant movies from China, Ethiopia, Austria and India line up for Mumbai.
Scientists are puzzled by what caused the mysterious nuclear leak at the Kakrapar Nuclear Power Plant in Gujarat last year, reveals Pallava Bagla.
If "innovation" were a person, he or she would have looked like David Bowie.
'Human rights violations are there in rural areas and in cities. In rural areas it is crude and in the open. In urban areas it is well hidden.' 'Awareness has grown several fold. India has 160 national and state human rights institutions. No other country in the world has this.' 'Unfortunately the right to association, right to assembly, freedom of expression, right to protest and discuss are all being curtailed systematically one by one.'
Top 20 images of all the events of the week that was.
India's unusual tough stand on the arrest of its diplomat Devyani Khobragade has forced the United States to initiate an "inter-agency review" to look into the lapses that happened in the high-profile case that triggered an uproar in India and strained bilateral ties.
International Ski Federation (FIS) president Gian-Franco Kasper has warned FIFA against holding the 2022 World Cup in Qatar at the same time as the Winter Olympic Games.
News of all that's transpired on and off the football field
'Clearly, from the Indian viewpoint, the US retrenchment from Asia cannot be happening as good news.' 'The abandonment of the US' pivot to Asia exposes the US-Indian partnership to be a mere transactional relationship,' says Ambassador M K Bhadrakumar
