Roma opened their Champions League Group E campaign in style with a 5-1 mauling of Russian side CSKA Moscow at the Stadio Olimpico.
Chelsea were held to a 1-1 draw by Schalke in Group G as Jose Mourinho's men were unable to carry their peerless Premier League performances into the Champions League.
Barcelona opened their Champions League campaign with victory over Apoel Nicosia, although the 1-0 result will have done little to worry any of their Group F rivals.
Shakhtar Donetsk battled to a 0-0 draw at Athletic Bilbao as both sides kicked off their Champions League Group H Champions League campaigns at the San Mames Stadium.
Yacine Brahimi's hat-trick fired Porto to a new club-record Champions League victory in a 6-0 demolition of BATE Borisov at the Dragao Stadium.
Lasse Schone's equaliser denied Zlatan Ibrahimovic victory on his old stomping ground as Ajax held Paris St Germain to a 1-1 Champions League draw.
Olympiakos got their Champions League campaign off to a winning start as they recorded a 3-2 victory over Atletico Madrid in the Group A clash at Karaiskakis Stadium.
Juventus forward Carlos Tevez ended his Champions League goal drought with both goals in the 2-0 defeat of Malmo.
Real Madrid opened the defence of their Champions League title with a 5-1 mauling of Basel in Group B at the Santiago Bernabeu.
It was almost just like the old days as Steven Gerrard scored an added-time winner to get Liverpool's Champions League return off to a winning start.
Galatasaray striker Burak Yilmaz netted a stoppage-time equaliser to deny Anderlecht a first away Champions League win for nine years in a 1-1 Group D draw in Istanbul.
Joao Moutinho's second-half goal ensured Monaco's return to the Champions League after a 10-year absence ended in victory against Bayer Leverkusen at the Stade Louis II.
Zenit St Petersburg made the ideal start to their Champions League campaign as two first-half goals set them on their way to a comfortable victory at 10-man Benfica.
Arsenal endured a chastening start to their Champions League group campaign after being overwhelmed by Borussia Dortmund at Signal Iduna Park.
Cristiano Ronaldo has won the UEFA Best Player in Europe Award for the 2013-14 season after his role in Real Madrid's Champions League glory.
Liverpool will face European champions Real Madrid in Champions League Group B.
Cosmin Moti took over in goal after the Bulgarians' first-choice keeper had been sent off, and his resulting heroics helped to see them past Steaua Bucharest.
Bayer Leverkusen cruised through with a 4-0 win over FC Copenhagen making it 7-2 on aggregate.
Marek Hamsik gave Napoli Champions League hope, but shambolic defending saw Athletic Bilbao win the play-off 3-1.
Arsenal scraped into the group stage of the Champions League on a night of high anxiety at the Emirates Stadium that saw Alexis Sanchez open his Gunners account.
Ten-man Zenit St. Petersburg cruised into the group stage, beating Standard Liege 3-0 in Russia after two goals by Hulk to seal a 4-0 aggregate win.
Celtic dramatically crashed out of the Champions League for the second time this season with a 1-0 play-off defeat by Maribor at Parkhead taking the visitors through 2-1 on aggregate.
Hector Herrera scored the only goal as Porto left France with a 1-0 victory over Lille.
Arsenal survived a hostile atmosphere and the sending-off of midfielder Aaron Ramsey to leave Istanbul with what could prove a priceless 0-0 draw against Besiktas.
Athletic Bilbao will have the upper hand back at San Mames after holding Napoli to a 1-1 draw.
Cristiano Ronaldo scored twice to ensure a successful Wales homecoming for his teammate Gareth Bale as Real Madrid comfortably won the UEFA Super Cup against Sevilla in Cardiff.
Arsenal will have to find a way past Besiktas if they are to qualify for the Champions League group stage after being drawn against the Turkish side in the playoff round of the competition.
Celtic have been reinstated to the Champions League after Legia Warsaw had their third qualifying round second-leg win over the Scottish champions overturned for fielding an ineligible player.
Zenit St Petersburg claimed the final place as a seed for the Champions League playoff round non-champions draw after beating AEL 3-0 on Wednesday night.
Celtic's Champions League hopes were demolished by Legia Warsaw as the Polish side won 2-0 with plenty to spare in the second leg of their third qualifier at the BT Murrayfield stadium.
Cristiano Ronaldo scored from a free kick to help Real Madrid beat Gremio 1-0 and claim the Club World Cup in Saturday's final in Abu Dhabi.
Gareth Bale was the surprise hero as Real Madrid survived a shock against outsiders Al Jazira to win 2-1 in Wednesday's extra dramatic Club World Cup semifinal in Abu Dhabi.
Reigning champions Real Madrid will face Paris Saint-Germain in the Champions League round of 16, while Chelsea take on Barcelona.
Real Madrid star Cristiano Ronaldo won the fifth Ballon d'Or of his career on Thursday, matching Lionel Messi as the most-awarded winner of one of the sport's top individual honours.
A scintillating display of football from Liverpool's Fab Four saw Jurgen Klopp's side blaze their way into the Champions League knockout phase with a 7-0 victory over Spartak Moscow.
Manchester City slumped to their first defeat of the season with a 2-1 loss to Shakhtar Donetsk in their final Champions League Group F game.
Fernando Llorente and Georges-Kevin Nkoudou scored their first goals for Tottenham goal as Spurs strolled into the Champions League round of 16 by beating Apoel Nicosia.
Cristiano Ronaldo became the first player to score in every Champions League group stage match as Real Madrid beat Borussia Dortmund 3-2 at the Bernabeu.
Feyenoord finally secured their first points in Champions League Group F, rallying from a goal down to beat Napoli 2-1 on Wednesday, costing the Serie A side a spot in the round of 16.
Sevilla qualified for the round of 16 of the Champions League with a 1-1 draw at Maribor on Wednesday.
Ten-man Porto advanced out of Group G with a 5-2 defeat of a disappointing Monaco side, who also went down a man at the Estadio do Dragao.
RB Leipzig's Champions League debut ended in a 2-1 home loss to Group G winner Besiktas on Wednesday.
Bayern Munich got a little payback against Paris Saint-Germain with a 3-1 win at the Allianz Arena on Tuesday night in Group B.
Juventus secured their place in the round of 16 of the Champions League with a 2-0 victory against Olympiakos in Greece.
Barcelona completed their Champions League Group D campaign with a 2-0 win over Sporting Lisbon at the Camp Nou.
Manchester United came from behind to beat CSKA Moscow and top their Champions League group as Jose Mourinho's men took their unbeaten home run to a club record-equalling 40th match.
Chelsea missed a chance to finish top of Champions League Group C after a 1-1 draw at home to Atletico Madrid, who will settle for a Europa League spot.
Roma progressed to the Champions League knockout stage as Group C winners after beating Qarabag 1-0 on Tuesday.
Celtic will be playing European football after Christmas despite a 1-0 Champions League defeat by Anderlecht at Parkhead.
Lionel Messi started on the bench as Barcelona secured their passage into the round of 16 of the Champions League with a 0-0 draw at Juventus.
Corentin Tolisso set up one goal and scored another to give Bayern Munich a 2-1 win over Anderlecht on Wednesday in Group B of the Champions League.
Manchester United were denied a place in the Champions League knockout phase as Michael Lang's late strike secured Basel a memorable, and deserved, victory.
Willian scored twice and was fouled for two penalties as Chelsea cruised into the Champions League knockout stages with a 4-0 win over 10-man Qarabag at the Olympic Stadium in Baku.
Antoine Griezmann's stunning goal kept Atletico Madrid's Champions League hopes alive as they grabbed a vital victory over Roma.
Celtic suffered another night of European anguish against Paris St Germain in a 7-1 thrashing in the Parc des Princes.
Raheem Sterling struck a late winner as Manchester City secured top spot in Champions League Group F with a 1-0 win over Feyenoord.
Cristiano Ronaldo set another Champions League record as holders Real Madrid sealed their place in the knockout stages with a comprehensive victory against Apoel Nicosia.
Lorenzo Insigne's magical strike broke Shakhtar Donetsk's defences and Napoli went on to a 3-0 win, which gives them hope of Champions League progress.
Liverpool squandered a three-goal half-time lead to throw away the chance of early Champions League qualification as Sevilla netted a 93rd-minute equaliser in Spain.
Son Heung-Min proved the scourge of Borussia Dortmund again as his late winner ensured Tottenham will go through to the Champions League round of 16 as group winners.