Here are some of the other events -- in pictures -- that made news last week.
LeicesterCity boss Claudio Ranieri has been named the Premier League manager of the month for April, while ManchesterCity striker Sergio Aguero has won the award for the players.
Chelsea manager Jose Mourinho delivered an expletive-laden halftime team talk that fired his side to a 3-1 comeback victory over Leicester City on Wednesday and moved them to within three points of the Premier League title.
Chelsea's old guard masterminded one of the club's greatest European escapes to reach the Champions League quarter-finals on Wednesday, beating Napoli 4-1 after extra time at Stamford Bridge to edge an electrifying tie 5-4 on aggregate.
News of all that's transpired on and off the football field
The good news for Schalke 04's defenders as they prepare to face Chelsea in their opening Champions League Group G match on Wednesday is that striker Diego Costa is nursing a slight hamstring injury.
Fernando Torres, suddenly oozing confidence in front of goal, netted his first Chelsea hat-trick as the Champions League finalists capped a sensational week by routing Queens Park Rangers 6-1 in the Premier League on Sunday.
Chelsea striker Diego Costa is uncertain to start their Premier League game against Stoke City as he tries to shake off the lingering effects of a hamstring injury, manager Jose Mourinho said on Friday.
Chelsea may never quite get over the perceived injustice of their 2009 Champions League semi-final loss to Barcelona but Wednesday's victory over the Spaniards could go some way to easing the pain.
Chelsea defender Branislav Ivanovic has been charged with violent conduct by the Football Association for an incident in the game against Wigan Athletic at the weekend, the FA said in a statement on Tuesday.
Chelsea's commanding start to the Premier League season continued with a 3-0 victory over Aston Villa on Saturday as their rivals for the title continued to look vulnerable.
Chelsea manager Jose Mourinho has been fined 25,000 pounds ($38,000) by the FA after claiming there was a "campaign" to influence referees' decisions against his team.
Chelsea nervously beat Benfica 2-1 in their Champions League quarter-final second leg at Stamford Bridge on Wednesday to seal a 3-1 aggregate victory and set up a semi-final with holders Barcelona later this month. Real Madrid completed an 8-2 aggregate, thrashing of APOEL Nicosia, in the night's other match.
Former Chelsea and England captain John Terry has joined Championship side Aston Villa, the club's owner said on Monday.
Arsenal and Chelsea could be forced to postpone their December 26 Premier League fixtures because of a strike planned by London Underground train drivers which threatens to bring the capital to a halt.
Former Chelsea and England winger Joe Cole played a major role in persuading Lille midfielder Eden Hazard to move to Stamford Bridge, the Belgian international said.
Jose Mourinho has committed himself to Premier League champions Chelsea until at least 2019 after signing a new four-year contract as manager, the west London club said on Friday.
Arguably the hottest of hot seats in soccer is vacant yet again after Chelsea's ruthless Russian owner Roman Abramovich removed Andre Villas-Boas on Sunday.
Chelsea turned again to experienced Dutchman Guus Hiddink to guide them out of a crisis when they named him interim manager on Saturday for the rest of the season following the sacking of Jose Mourinho.
Chelsea manager Jose Mourinho has been a named a respondent in the legal action being brought against the club by their former team doctor Eva Carneiro for constructive dismissal, sources close to the case said on Monday.
News of all that transpired on and off the field.
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.
Having had their lead wiped out in midweek Manchester City have the chance to steal a march on their Premier League title rivals when they host Fulham on Saturday.
Skipper Robin van Persie scored a hat-trick as Arsenal beat Chelsea 5-3 after twice coming from behind in a remarkable Premier League match of attacking brilliance and defensive mistakes at Stamford Bridge on Saturday.
Didier Drogba scored late in the first half and Chelsea kept free-scoring Lionel Messi in check to secure a 1-0 win over holders Barcelona in their Champions League semi-final first leg on Wednesday.
Chelsea striker Diego Costa is looking for a move away from Stamford Bridge after being told by manager Antonio Conte that the 28-year-old is not part of his plans at the Premier League club, the Spain international has said.
Chelsea's renaissance under Roberto Di Matteo faces the ultimate test on Wednesday, a trip to fortress Eastlands to face a Manchester City side who must win to stay on the coat tails of leaders Manchester United.
The Chelsea old guard showed they are not ready to be consigned to the scrapheap after a thrilling win over Napoli in the Champions League on Wednesday.
Spanish striker Fernando Torres is "not for sale at any price", Chelsea manager Andre Villas-Boas said on Thursday.
Chelsea fans, fed up and disillusioned with a series of bewildering decisions by the sacked Andre Villas-Boas, cannot wait to find out the team his successor Roberto Di Matteo picks for his first game in charge.
Two goals from Didier Drogba steered Chelsea to an emphatic 3-0 victory over Valencia and top spot in Group E at Stamford Bridge Tuesday as they moved into the Champions League knockout phase for the ninth consecutive season.
Fans are openly speculating that owner Roman Abramovich, a man who places notoriously high demands on his managers, could call time on Jose Mourinho's second spell at Stamford Bridge if Liverpool can inflict another defeat on the champions.
Liverpool midfielder Lucas Leiva will miss the rest of the season after injuring his knee in the League Cup win against Chelsea on Tuesday, the Premier League club said.
Didier Drogba became Chelsea's fourth highest all-time scorer when he bagged the second goal in their 3-0 victory over Bolton Wanderers in the Premier League on Saturday.
Frank Lampard said his relationship with Chelsea manager Andre Villas-Boas has "not been ideal" during the young Portuguese coach's first season in charge at Stamford Bridge.
Antonio Conte said his Chelsea players were fatigued after only 30 minutes of their 1-0 loss to Manchester City.
Manchester United fought back from three goals down to draw 3-3 with Chelsea in a thrilling Premier League match at Stamford Bridge Sunday.
Chelsea and former manager Jose Mourinho have reached an undisclosed settlement with former team doctor Eva Carneiro at an employment tribunal in London, the Premier League club said on Tuesday.
Skipper Robin van Persie scored a hat-trick as Arsenal beat Chelsea 5-3 in a remarkable Premier League match at Stamford Bridge but Manchester City stayed top of the Premier League with a 3-1 home win over Wolverhampton Wanderers on Saturday.
Salah joined Chelsea under Mourinho in 2014 but failed to establish himself at Stamford Bride and was loaned out to Fiorentina and Roma before a permanent move to the Stadio Olimpico outfit in 2016.