Estoril's home Europa League clash with PSV Eindhoven was suspended at halftime on Thursday due to adverse weather and will be finished on Friday, UEFA said.
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.
Seven-time European champions AC Milan hit back from two goals down against Celtic to claim a 4-2 victory that sent them into the Europa League knockout phase on Thursday as they were among 14 teams to progress in Europe's second-tier competition.
Tottenham Hotspur have been fined 15,000 euros ($18,600) by UEFA after their Europa League game against Partizan Belgrade last month was suspended for several minutes following three separate pitch invasions, the governing body said on Thursday.
Belgian league leaders Antwerp secured a shock 1-0 win over Tottenham Hotspur and AC Milan extended their unbeaten run to 23 games as they won 3-0 against Sparta Prague in the Europa League on Thursday, while Arsenal cruised to a 3-0 win over Dundalk.
On a good night for English clubs in the Europa League, Manchester United hammered AZ Alkmaar 4-0, while Wolverhampton Wanderers also thrashed Besiktas 4-0 in Group K, and Arsenal came from two goals down to draw 2-2 away to Standard Liege and finish first in their pool. The upset of the night came in Group J as Crivelli scored a 90th-minute winner against Borussia Moenchengladbach to send Basaksehir through and knock the Germans out, with AS Roma grabbing the runner-up spot thanks to a 2-2 home draw with Wolfsberger as the Europa League group stage concluded on Thursday.
Hundreds of blue and white Napoli scarves were tied to railings outside the stadium, and flowers, childrens' pictures, church candles and even a bottle of wine were laid out along the pavement in a rapidly expanding, makeshift shrine.
Tottenham Hotspur could face punishment from European soccer's governing body UEFA after their Europa League game with Partizan Belgrade on Thursday was suspended for several minutes following three separate pitch invasions.
Jonatan Soriano's love affair with the Europa League continued as last season's top scorer grabbed a hat-trick on Thursday to help Salzburg become one of four teams to reach the knockout stages.
Arsenal's fans had waited nine long months to return to the club's north London stadium but the 2,000 people sprinkled across the red seats had to wait only nine minutes to enjoy the thrill of celebrating a goal in the flesh again on Thursday.
'Every player needs that moment, that turning point ... to settle and hopefully now Arsenal can see what they paid for... 72 million pounds was seeming expensive until tonight'
A summary of Thursday's matches in the Europa League.
New Liverpool boss Juergen Klopp made it three wins from his last three matches with a 1-0 success at Rubin Kazan in Russia that left them second in Group B, two points behind Swiss club Sion on Thursday.
Metalist Kharkiv, due to play Schalke 04 in the Champions League play-off round next week, has been kicked out of the competition over a domestic match-fixing case dating back to 2008, the UEFA said on Wednesday. The decision by UEFA's appeals committee came 10 days after Metalist lost an appeal at the Court of Arbitration for Sport.
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.
Three time European champions Inter Milan were stunned 2-0 at home by Israeli side Hapoel Beer-Sheva and Manchester United were floored by a late goal from Feyenoord as the Europa League group stage got underway on Thursday.
Tottenham Hotspur's Erik Lamela scored a stunning 'rabona' goal to light up Thursday's Europa League ties, wrapping his left boot round the back of his right leg 20 metres out and blasting the ball into the top corner.
Everton have been handed the dubious distinction of being the 'dirtiest' Premier League team after a study on the all-time cards and fouls by www.dirtyteams.co.uk.