Napoli begin their title defence at Sassuolo on Saturday.
Virgil van Dijk scored with a stunning late header in the second minute of stoppage time to give Liverpool a 3-2 victory over Atletico Madrid in their opening group stage match of the Champions League, at Anfield, on Wednesday.
Greek Super League leaders Olympiakos Piraeus set a club record 17 successive league wins by beating Levadiakos 3-1 at the Georgios Karaiskakis stadium on Sunday.
The Journalists Newspaper reported that the Greek champions' place in Europe's elite competition would be at risk if corruption claims against club president Marinakis were proven.
A rare headed goal from Rivaldo earned Olympiakos Piraeus a 1-0 win over Akratitos in the Greek first division.
Olympiakos have sacked their Brazilian coach Zico following a string of poor results, the Greek club confirmed on Tuesday.
Manchester United breezed into the next round with a 6-1 aggregate win over Club Brugge
British-born Greece defender George Baldock was found on Wednesday in a swimming pool at his home in the southern Athens suburb of Glyfada.
Greek media speculated the 32-year-old Brazilian would earn up to $1.86 million per year.
Ricardo Quaresma scored a stoppage-time goal to give Porto a 1-0 victory over Besiktas.
Olympiakos Piraeus battled back from a two-goal deficit to earn a 2-2 home draw with last year's runners-up Tottenham Hotspur in their Champions League Group B opener.
Juventus did the bare minimum as they scraped into the Champions League knockout stage on Tuesday with a 0-0 draw at home to Atletico Madrid, a result which also suited the Spaniards who topped the group.
Arsenal will put one of the best Champions League records on the line when they face Olympiakos Piraeus in a showdown for second spot in Group F on Wednesday.
IMAGES from Europa League matches played on Thursday.
Olympiakos Piraeus secured a surprise 3-2 victory over last year's Champions League runners-up Atletico Madrid to make a dream start to their Group A campaign on Tuesday.
Olympiakos Piraeus may never have a better chance to overcome their Manchester United hoodoo than in Tuesday's first leg of their last-16 Champions League tie.
Images from the Champions League matches played across Europe on Wednesday.
Arsenal have left six first-team regulars in London ahead of their final Champions League group stage match against Olympiakos Piraeus in a bid to avoid fatigue following the home defeat to Swansea City.
Olympiakos kept their one-point lead over Panathinaikos at the top of the Greek Super League on Sunday courtesy of a 3-0 home win over bottom club Panthrakikos.
Manchester United's dwindling hopes of lifting a trophy this season are dangling by a thread after they produced an abject display to lose 2-0 at Olympiakos Piraeus in a Champions League last-16 first leg on Tuesday.
Girondins Bordeaux are on course to reach the Champions League quarter-finals for the first time after Michael Ciani's first-half header earned Laurent Blanc's side a 1-0 victory at Olympiakos Piraeus on Tuesday.
Manchester City squandered a three-goal lead to draw 3-3 with Feyenoord in the Champions League on Tuesday.
Real Madrid's Cristiano Ronaldo set a Champions League group phase scoring record on Tuesday as Bayer Leverkusen and Olympiakos Piraeus reached the last 16 and snow forced Galatasaray's match with Juventus to be abandoned.
Not even could coach David Moyes run away from the fact that Manchester United were woeful in their last 16 first leg outing against Olympiakos on Tuesday.
Robin van Persie's hat-trick lifted the gloom surrounding Manchester United and manager David Moyes as the English side beat Olympiakos Piraeus 3-0 to overturn a 2-0 first-leg deficit and reach the Champions League quarter-finals on Wednesday.
A rousing 2-1 La Liga victory at Real Madrid on Saturday may suggest otherwise, but Atletico Madrid are still rebuilding after losing several key players in the close season, coach Diego Simeone said on Monday.
Juventus set a new Champions League record with a 7-0 victory over Olympiakos that assured them top spot in Group D.
Argentina have called up Mallorca's Spanish defender Pablo Maffeo for the first time ahead of this month's World Cup qualifiers against Uruguay and Brazil in the squad announced by its FA on Friday.
The Greek league leaders confirmed the move but did not give financial details. Local media said Toure would be paid around 2.5 million euros ($2.9 million) for one season.
Two goals from Thomas Mueller and one from substitute Mario Goetze helped Bayern Munich kick off their Champions League campaign with an impressive 3-0 victory over Olympiakos.
Jose Mourinho's side top Group G with a maximum nine points, three clear of second-placed Slavia.
Rennes denied late Europa League equaliser due to little-known rule
IMAGES from the Europa League matches played on Thursday.
AC Milan have been drawn to play Manchester United in what is the standout tie in next month's Europa League round of 16.
Rashford scores a brace as Man United fight back to beat Omonia
AC Milan grabbed a 1-1 draw at Manchester United in the blockbuster Europa League last-16 first-leg at Old Trafford on Thursday.
In the third-tier Europa Conference League, English Premier League club Leicester City will face Danish side Randers and Scottish club Celtic will take on Norwegian champions Bodo/Glimt in the knockout playoff round.