Chelsea came from behind to beat Leicester City 3-1 on Wednesday and move to within one win of clinching the Premier League title for the first time in five years.
John Terry embellished his status to Chelsea fans as "captain, leader, legend" by scoring the goal that set his side on the way to a 2-0 win over Tottenham Hotspur in the Capital One Cup final at a rain-sodden Wembley on Sunday.
Chelsea scrambled a stoppage-time winner to snatch a 1-0 victory over Everton on Saturday, showing their Premier League title mettle by claiming three points when they looked on course to suffer another damaging blow.
Zlatan Ibrahimovic scored the winner as Paris St Germain beat Chelsea 2-1 to knock them out of the Champions League for the second successive season at Stamford Bridge on Wednesday.
Borussia Dortmund snatched a late goal at Atalanta to progress with a 1-1 draw, while AC Milan and Atletico Madrid, both with three-goal leads from the away legs, completed the formality of qualifying with 1-0 wins at home on Thursday.
A goal in added time by Diego Costa earned Chelsea a 1-1 draw against Manchester United on Sunday and preserved Guus Hiddink's unbeaten record while denying Dutch compatriot Louis van Gaal victory.
If, as former British Prime Minister Harold Wilson once said, a week is a long time in politics, four and a half months in football clearly represents an eternity.
The Premier League season is only a week old and the problems are already piling up for misfiring champions Chelsea after a 3-0 thrashing at Manchester City on Sunday.
England striker Daniel Sturridge celebrated his return after a five-month injury layoff when he came off the bench to score as Liverpool beat West Ham United 2-0 in the Premier League on Saturday.
It was a day of role reversal as Jose Mourinho's often cautious Chelsea thumped Everton 6-3 in a thriller on Saturday while champions Manchester City's attacking talents were blunted in a shock 1-0 home defeat by Stoke City.
Luis Suarez struck a clinical hat-trick as Liverpool thrashed West Bromwich Albion 4-1 at Anfield to keep pace with Premier League leaders Arsenal on Saturday.
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.
IMAGES from the Europa League matches played on Thursday
Luis Suarez marked his return to Premier League action with two goals to help Liverpool to a 3-1 win at managerless Sunderland that lifted them to second in the table on Sunday.
Leicester go five clear after win at Everton
Antonio Conte's title ranks as one of the finest of the Abramovich era because this title was so unexpected. Out of the blue, in fact.
Premier League Swansea City fell victims to the first major giant-killing of the FA Cup third round on Sunday when they lost 3-2 away to League Two (fourth tier) side Oxford United.
The club anthem Blue is the Colour resounded around a joyful Stamford Bridge and champagne flowed as Chelsea clinched their first Premier League title for five years with a typically stubborn 1-0 victory over Crystal Palace on Sunday.
Willian's late strike snatched a 1-0 home win for Chelsea over a stubborn Everton side to maintain lead.
The politically-sensitive Euro 2016 qualifier between Serbia and Albania was abandoned on Tuesday following a brawl between players from both sides after a flag stunt.
A fixture billed as a pre-Christmas cracker was more 'In the Bleak Midwinter' than 'Jingle Bell Rock' as Arsenal's hopes of regaining top spot in the Premier League fizzled out in a turgid 0-0 draw with Chelsea.
Key moments in Chelsea's Premier League title-winning season.
Veteran Drogba showed that he still has a lot of steam in him as he scored in Chelsea's win over Spurs, while Aguero continued to top the goal-scorers' list this season, finding the net for City. Images from the EPL matches played across England on Wednesday.
In case they needed it, the short trip to Crystal Palace will re-focus Chelsea's globe-trotting players on matters at home as the Premier League slips back into gear this weekend after the second international break of the season.
Schalke 04 halted the Chelsea juggernaut when they drew 1-1 in their Champions League Group G opener at Stamford Bridge on Wednesday, handing a wake-up call to the London club who had won their first four games of the season.
First-half goals by Danny Welbeck and Alex Iwobi earned Arsenal a first win in four league games to revive their Premier League title hopes in the early kickoff at Goodison Park on Saturday.
Bahader had previously told media he was 75, which he attributed to "rounding up".
Chelsea heaped more Christmas misery on Liverpool with a 2-1 victory at Stamford Bridge and Olivier Giroud ended a seven-game scoring drought to help Arsenal win 1-0 at Newcastle United and return to the top of the Premier League on Sunday.
Two brilliant strikes from Isco and a late goal from Alvaro Morata gave Spain a spectacular 3-0 win over Italy, their nearest challengers in Group G, to move into the driving seat for automatic qualification to the 2018 World Cup.
Although Spurs always looked more comfortable on the ball it was Sean Dyche's side, who have just a point from their opening five games, who had come the closest.
Following this stunning turn-around of fortunes for Barcelona, here is a flashback of some of the best come-from-behind wins recorded in Europe's premier club competition.
Following Bayern Munich's brilliant 7-4 (on aggregate) win over FC Porto in the quarter-finals of the Champions League, here's a look at a few memorable come-from-behind victories in Europe's premier football competition.
Spain started their World Cup qualifying campaign with a crushing 8-0 win over Liechtenstein, laying down a marker in Group G with a ruthless second-half display on Monday.
Roberto Firmino's goal gave Brazil a 1-0 victory over Chile in a feisty friendly at the Emirates Stadium in London on Sunday, their eighth successive win since last year's disappointing World Cup campaign.
It will have made uneasy viewing for coach Jorge Sampaoli and emphasised more than ever how reliant his side are on their talisman Messi, who has been struggling with a muscle problem.