Borussia Dortmund eased past nine-man Hamburg SV 3-0 to keep their slim Bundesliga title hopes alive on Sunday as they moved seven points behind leaders Bayern Munich with four games remaining.
Inter Milan face Barcelona, Tottenham Hotspur and PSV Eindhoven in Group B which features three former European champions.
Roma knocked Real Madrid out of the Champions League and reached the quarter-finals, where they were joined by Chelsea and Schalke 04.
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Aston Villa have appointed former Chelsea boss Roberto Di Matteo as their new manager, the BBC reported on Thursday.
In the other pairings, English champions Manchester United will take on Greek club Olympiakos, while AC Milan take on Atletico Madrid.
Jose Mourinho stayed on course to become the first coach to win the Champions League with three different clubs when Real Madrid beat Tottenham Hotspur 1-0 on Wednesday to seal a 5-0 aggregate rout in the quarter-finals.
Having seen the domestic league and cup double go to Porto last term, Benfica missed a string of chances against PAOK in a one-sided first half as they enjoyed 72% of possession.
Images from the Champions League matches played across Europe on Wednesday.
Bayern Munich eased past Nuremberg 2-0 on Saturday with Franck Ribery and Arjen Robben on target to maintain a perfect start to the season and join a cluster of teams with nine points at the top of the table.
Hulk signs two-year contract with Atletico Mineiro.
Bundesliga players are free to show their support for protests over the death of George Floyd, an unarmed black man killed in police custody in the United States, the German Football Association (DFB) said on Wednesday.
Champions Bayern Munich scored a goal late in each half to beat promoted Union Berlin 2-0 on their return to the Bundesliga on Sunday after more than two months out due to the COVID-19 pandemic, and protect their four-point lead at the top. League top scorer Robert Lewandowski converted a 40th minute spot kick and Benjamin Pavard headed in a corner in the 80th in an empty stadium, to keep the Bavarians in the driving seat for a record-extending eighth successive league title.
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Images from the EPL matches played across England on Saturday.
Holders Real Madrid survived a huge scare when they lost 4-3 to Schalke 04 in the Champions League on Tuesday but squeezed into the quarter-finals 5-4 on aggregate thanks to record European marksman Cristiano Ronaldo.
Real Madrid's Karim Benzema rescued his side again by scoring two late goals to snatch a 2-1 win at home to Elche in La Liga on Saturday and revive his side's hopes of catching leaders Atletico Madrid.
Manchester United will be clutching at the final straw of a sobering season when they attempt to overturn a 2-0 deficit against Greek side Olympiakos and reach the quarter-finals of the Champions League on Wednesday.
Guardiola upbeat despite Man City setback at Tottenham
The League champions beat Schalke 04 in the German Cup final on Saturday.
Real Madrid forward Cristiano Ronaldo is itching to get back into action in Wednesday's Champions League last 16, first leg at Schalke 04 after serving a three-match La Liga ban, coach Carlo Ancelotti said on Tuesday.
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A Roy Makaay hat-trick and Schalke 04's draw sealed their 19th German championship.
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Manchester City manager Pep Guardiola has confirmed he is interested in signing Everton's young centre back John Stones, who has been linked with a 50 million-pounds ($65.72 million) move to the Etihad Stadium.
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Ten of the 16 sides also reached the same round two seasons ago and, as usual, the big five leagues dominate with 13 clubs hailing from either the English, Spanish, German, French and Italian leagues.
Celtic winger James Forrest scored a dramatic stoppage time winner to secure his club a Champions League group stage place on Wednesday alongside AC Milan, Real Sociedad, Zenit St Petersburg and Czech champions Viktoria Plzen.
The linesman wrongly signalled off-side in the match between Schalke 04 and Borussia Dortmund.
French champions Paris St Germain have agreed to sign Germany midfielder Julian Draxler from VfL Wolfsburg on a four-year deal subject to a medical, the Bundesliga club said on Saturday. The 23-year-old, who has 27 caps, made 34 league appearances for Wolfsburg, scoring five goals, after joining from Schalke 04 in August 2015. No financial details were disclosed but French media said the deal was worth 36 million euros ($37.66 million).
Lightning struck twice for Marc-Andre ter Stegen on Saturday when the Borussia Moenchengladbach goalkeeper scored a bizarre own goal in a 1-1 draw at Eintracht Braunschweig and his opposite number also put through his own net.
Neuer made the squad despite playing in just one official game, a friendly against Austria on Friday, since breaking a bone in his foot in September but talented 22-year-old Sane was the biggest name to miss out.
Images of the Champpions League matches that were played on Tuesday.
Moritz Stoppelkamp scored an extraordinary goal from deep inside his own half, a Bundesliga record 83 metres, to cap a 2-0 win for upstarts Paderborn over Hanover 96 on Saturday, helping the promoted side go to of the table.
European champions Real Madrid will face former champions Liverpool, FC Basel and debutants Ludogorets of Bulgaria following the draw for the group stage of the Champions league on Thursday.
Borussia Dortmund stayed top of the Bundesliga by beating Augsburg 4-3, while titleholders Bayern Munich were thumped 3-0 at home by Borussia Moenchengladbach.