Only one point separates the two sides with Chelsea on 31 and City on 30 but Antonio Conte's impact at Stamford Bridge appears greater than his City counterpart Pep Guardiola's at the Etihad.
The English Premier League boasts some of the top managers in the game but to see the best players in the world you have to watch Spanish soccer, Barcelona president Josep Bartomeu said.
Bundesliga champions Bayern Munich suffered their first league defeat in 18 months when they slumped to a 1-0 loss at Augsburg on Saturday as Sascha Moelder's first-half strike ended their record 53-game unbeaten league run.
Barcelona coach Luis Enrique is leaving the Spanish La Liga champions at the end of the season when his contract expires after three trophy-laden seasons at the club.
Pep Guardiola's insatiable team were already thinking beyond the magnificent 2018-19 campaign and contemplating a third straight English title win next season with the Spaniard having said they will get even better.
The three sides who have bossed the ball the most in Russia, Spain, Germany and Argentina have all said "do-svidaniya" before the quarter-finals.
IMAGES from the Champions League matches played on Tuesday.
Liverpool were sent spinning to a 2-0 defeat at promoted Burnley in the English Premier League on Saturday while Chelsea came from behind to win 2-1 at Watford thanks to late goals from Michy Batshuayi and Diego Costa.
They say never go back, but United fans had been longing for Ronaldo to rejoin their side for many years, more in forlorn hope than anything else.
Manchester City chalked up yet another victory to maintain their stranglehold of the Premier League title race but pursuers Manchester United and Leicester City both secured important wins to enhance their top-four bids on Sunday.
The Danish international scored the winner as Spurs beat Bournemouth 1-0 in the Premier League on Saturday and Eriksen has set his sights on another good showing against the European champions at the Santiago Bernabeu.
"After feeling strange in the second half of the Burton game in September, I underwent a series of tests," he said.
News of all that's transpired on and off the football field
Bayern Munich go into their Champions League last-16 second leg at home to Shakhtar Donetsk on Wednesday knowing the game will make or break their season.
German champions Bayern Munich have completed the transfer of former World Cup winner Xabi Alonso from Real Madrid on a two-year deal as they seek to boost their midfield options following a string of injuries.
News of all that's transpired on and off the football field
Bayern Munich forward Robert Lewandowski took the honours as the league's top scorer with 30 goals after netting in the champions' 3-1 victory over already-relegated Hanover 96.
The following are talking points from the weekend's Premier League action:
Bayern Munich secured a record fourth consecutive Bundesliga title with a game to spare after a 2-1 victory at Ingolstadt on Saturday helped them put the disappointment of their midweek Champions League semi-final exit behind them.
The enduring image of Luis Enrique for many soccer fans is the Spain player with blood gushing from his nose after a vicious elbow from Italy defender Mauro Tassotti during the 1994 World Cup quarter-final in Boston.
Sergio Aguero's hat-trick led Manchester City to a 3-1 win over Arsenal on Sunday and back into second place in the English Premier League, two points behind leaders Liverpool.
Champions Manchester City slipped to a shock first Premier League defeat of the season at Wolverhampton Wanderers on Saturday, while Manchester United's campaign of woe continued with a loss to Crystal Palace.
Arsenal's new manager Unai Emery faces a baptism of fire after the Gunners were handed an opening day fixture at home to Premier League champions Manchester City.
Bayern Munich are confident they have overcome a mini-slump just in time for their Champions League round of 16 second leg against Juventus on Wednesday as they chase a treble of titles this season.
Thomas Mueller and Thiago Alcantara struck twice as Bundesliga leaders Bayern Munich thumped Werder Bremen 5-0 on Saturday to open an eight-point gap at the top with their first win in three games. The Bavarians, who claimed one point from their previous two matches, terrorised visiting Werder with Kingsley Coman setting up three goals in an eye-catching dress rehearsal for the Champions League last-16 second leg against Juventus next week. "It may look easy ... but it was not," said Bayern coach Pep Guardiola. "It was important to win after losing to Mainz 05 (last week). "As for Kingsley, he is a young player but today he showed his quality. We will need such a player on Wednesday." Guardiola can also count on Mario Goetze again after the attacking midfielder made his comeback from a four-month injury layoff.
Bayern Munich will be without experienced Franck Ribery when they meet Manchester City in their Champions League Group E opener on Wednesday with fellow winger Arjen Robben also doubtful, coach Pep Guardiola said.
News of all that's transpired on and off the football field
News of all that transpired on and off the football field
Manchester United manager Lous van Gaal has again dismissed reports he will leave Old Trafford at the end of the season, saying on Friday he does not have to answer to the media. The Dutchman's future has been the subject of persistent speculation after United's Champions League group-stage exit and indifferent Premier League displays sparked discontent among fans. Former Chelsea manager Jose Mourinho was linked with Van Gaal's job last and United were forced to deny a report that they had met with Pep Guardiola, the Bayern Munich boss who has said he wants to manage in the Premier League next season. "I don't think that the press have to help me with my decisions. First they have sacked me. Now they are interfering with my future. I don't have to answer," Van Gaal told reporters. "I have a relationship with the players of Manchester United. That is the most important thing. "Not everything the media are writing is true."
Rejected former boss David Moyes says Manchester United must not become a club that are continuously sacking managers and should give his under-fire successor Louis van Gaal time to build a successful side.
Manchester City to beat second-tier Sheffield Wednesday 1-0 and reach the FA Cup quarter-finals but Jose Mourinho's problems piled up as his Tottenham Hotspur side were bundled out in a penalty shootout by Norwich City.
Manchester City's hopes of remaining in the Premier League title race will hinge on how the defending champions negotiate the next five days with matches against Everton and Chelsea, midfielder Bernardo Silva has said.
Aymeric Laporte's late header sealed a deserved 1-0 victory over Tottenham Hotspur
Manchester City continued their imperious stranglehold over the League Cup with a 2-1 victory over Aston Villa with goals from Sergio Aguero and Rodri in the final at Wembley on Sunday to win the trophy for a third straight season. City became the first side to win the competition three seasons in a row since Liverpool claimed four straight titles from 1981 to 1984.
UEFA announced in a statement that City had committed "serious breaches" of the rules while the Premier League club swiftly said on their website that they will appeal the decision to the Lausanne-based Court of Arbitration for Sport (CAS).
The 28-year-old, who joined Arsenal in 2006, scored 108 goals in 397 appearances but has struggled to hold down a first-team place this season under manager Arsene Wenger.
Lionel Messi and Cristiano Ronaldo will go head-to-head once again for the title of world's best footballer after being short-listed along with Neymar on Monday for the 2015 FIFA Ballon d'Or.
The Senegal international, 26, joined Liverpool from Southampton in 2016 for 34 million pounds ($43.8 million) and has scored 40 goals in 89 games for the Anfield club.