The German captain was officially presented with his number 13 Chelsea shirt on Tuesday.
Fernando Torres scored his first goal since October to help Chelsea crush Leicester City 5-2 and Liverpool beat Stoke City 2-1 to reach the FA Cup semi-finals on Sunday.
The English Football Association has launched an investigation after Chelsea accused referee Mark Clattenburg of using 'inappropriate language' towards two of their players in Sunday's defeat by Manchester United.
Chelsea beat Valencia 3-2 on aggregate to enter the Champions League semi-finals for the third time in four seasons.
The 21-year-old Denmark international has made 22 appearances for the English champions this term having cemented his place at the heart of Antonio Conte's three-man defence.
Chelsea moved 12 points clear of Arsenal, who suffered their fourth defeat in nine league matches, while fourth-placed Liverpool fell 13 point adrift after their wretched 2017 continued with a shock 2-0 defeat at resurgent Hull City.
Out-of-sorts Chelsea have a golden opportunity to restore battered self-confidence when they face Maccabi Tel Aviv in their opening Champions League Group G match.
Chelsea overpowered West Ham United and Manchester City outclassed West Bromwich Albion as the Premier League title rivals signalled their intent at the start of a hectic holiday programme on Friday.
Defending champions Manchester City scintillated a stellar performance to record an emphatic 5-0 win over Newcastle, and reduced Chelsea's advantage to five points in the Premier League table on Saturday at Etihad Stadium.
Romelu Lukaku scored two goals for Everton, one demonstrating rare strength and skill, to knock his old side Chelsea out of the FA Cup 2-0 in a dramatic quarter-final featuring two red cards on Saturday. All the frantic action happened in the final 13 minutes with Chelsea striker Diego Costa and Everton midfielder Gareth Barry sent off but their dismissals only came after Lukaku's brilliance had put the tie beyond doubt. The powerful Belgium striker, who never fitted in at Stamford Bridge and was sold to the Merseysiders for 28 million pounds ($40.28 million) two years ago, proved irresistible with his late five-minute double, especially with a first goal destined to go down in Goodison Park folklore. As the game meandered towards a replay, Lukaku conjured a 77th-minute goal from nowhere, muscling past two defenders on the left, powering into the box and, after some nifty footwork to bamboozle Gary Cahill, firing in a left-foot effort. Everton manager Roberto Martinez hailed it "one of the great goals we will see in the FA Cup".
Chelsea returned to the top of the Premier League on Sunday with a 2-0 victory over Blackburn Rovers at a rain-drenched Ewood Park. Aston Villa could have gone above Manchester United into the top four but lost 2-1 at Middlesbrough for whom Tuncay Sanli scored an 88th-minute winner.
The unstoppable Gareth Bale scored twice in Tottenham Hotspur's 2-1 victory over Newcastle United in the Premier League on Saturday while rivals Chelsea and Arsenal also won to add spice to the race for the Champions League spots.
As Chelsea's Samuel Eto'o turns a year older today, Rediff.com celebrates this African gem and a milestone man...
IMAGES from the English Premier League matches played on Tuesday
IMAGES from Premier League matches played on Saturday.
England begin their World Cup group campaign against Iran on November 21.
A round-up of Saturday's action in the Premier League.
Messi opened the scoring after two minutes and eight seconds, the quickest goal of his career, slipping the ball through Thibaut Courtois' legs from a tight angle.
Manchester United eased the pressure on manager Ole Gunnar Solskjaer with a 3-1 win at Everton in the Premier League on Saturday with Bruno Fernandes scoring twice and Edinson Cavani grabbing his first for the club.
Jose Mourinho dropped his main striker Diego Costa for Chelsea's Premier League visit to Tottenham Hotspur on Sunday but the champions still proved toothless up front as they ground out an undistinguished goalless draw at White Hart Lane.
Chelsea's players must look at themselves and start performing, former Blues stalwart Frank Lampard said as speculation continues to swirl over the future of manager Jose Mourinho.
Chelsea and England footballer Ashley Cole was arrested early on Thursday morning on suspicion of being drunk and disorderly, a police source said. Cole was stopped by police on Brompton Road, in an upmarket area of London.
News of all that's transpired on and off the football field.
"Chelsea are a great club, so of course it interests me, but nothing has been signed or agreed yet," the Porto coach said.
As Chelsea's season suffered a final sorry implosion with an FA Cup defeat at Everton on Saturday, it was fitting that it should end with another display of fury from their angry young man, Diego Costa. While the inquest into the Premier League champions' dismal campaign will continue long after their 2-0 quarter-final reverse at Everton, the immediate topic consuming social media centred on the combustible Spain striker's sending-off, surprisingly his first for Chelsea. Alan Shearer, one of England's greatest strikers, joined the debate by telling BBC viewers the Brazilian-born forward had become "tiresome". Much of the attention focused on whether Costa, who became embroiled in a late face-to-face brouhaha with Everton's Gareth Barry, had gone as far as biting his opponent, Luis Suarez-style. Another question was whether he spat at the feet of referee Michael Oliver after being booked earlier for an altercation with Barry. "It's tiresome from him now. He spends too much time abusing and fighting and scrapping," Shearer said. "You can't do that every game because you turn the ref against you."
Frank Lampard underlined his value to Chelsea with a well-taken double that secured a 2-1 comeback win at Everton on Sunday to move the Londoners back up to third place in the Premier League.
Chelsea's Jose Mourinho, who hoped to celebrate his new contract with victory at an expectant Stamford Bridge, ended up grateful his team did not become the first Premier League champions to start their title defence with a defeat.
Tottenham Hotspur's tenacious chase of leaders Chelsea continued as they claimed a 12th consecutive Premier League home win with a 4-0 rout of Bournemouth on Saturday to cut the gap to four points.
It might not save manager Antonio Conte's job but Chelsea can still salvage a disappointing season by winning Saturday's FA Cup final
Manchester City moved 17 points clear of the pack with a 3-0 win at Fulham on Saturday
Newcastle United's Papiss Cisse struck twice in a 2-1 victory against English Premier League leaders Chelsea.
Rattled by embarrassing domestic defeats, Chelsea looked jittery before Olivier Giroud settled their nerves with a close range tap-in shortly after halftime at StamfordBridge following good work by N'Golo Kante and Willian in the build-up.
IMAGES from Saturday's English Premier League matches.
Two goals from Wayne Rooney gave Manchester United a 2-1 win at Tottenham Hotspur and denied Chelsea the chance to be crowned Premier League champions again on Monday.
News of all that's transpired on and off the football field
Watford climbed into the top four of the Premier League after Tom Cleverley's 92nd-minute goal gave them a 2-1 victory over Arsenal at Vicarage Road on Saturday.
A man has been arrested over an allegation that a racist gesture was made to a player during last week's Capital One Cup match between Chelsea and Manchester United, London's Metropolitan police said on Monday.
Barcelona were drawn in Group E with Bayern Munich, Benfica and Dynamo Kyiv.
Chelsea moved within two points of fourth-placed Tottenham Hotspur in the Premier League after a 1-0 victory over Liverpool thanks to an Olivier Giroud header at Stamford Bridge on Sunday.