Images from the UEFA Champions League matches played on Tuesday night.
Chelsea captain John Terry has said the players remain behind manager Jose Mourinho and need to rediscover the hunger of old to improve on a dreadful start to their Premier League title defence.
Arrizabalaga appeared to be injured as he prevented City's Sergio Aguero from scoring in the closing moments of extra time, and manager Maurizio Sarri ordered his substitution before Chelsea went on to lose the showpiece match 4-3 on penalties.
Here are some of the other events -- in pictures -- that made news last week.
While Lyon rallied to hold Leipzig 2-2 after a Memphis Depay strike, it was the English clubs who made a mark on the night. Liverpool and Chelsea moved into the last 16 with contrasting wins and now all four English clubs, including Manchester City and Tottenham Hotspur, are in the Champions League knockouts this season.
Chelsea look capable of beginning a period of sustained domestic dominance. The average age of their squad is 26.9 -- with most of their key players in or approaching their prime years.
Chelsea captain John Terry has been ruled out of Tuesday's Champions League clash with Paris St Germain after failing to recover from injury, the Premier League club said.
Normally the candidates for goal of the season are spread throughout the 10 months of the campaign, but this weekend's Premier League matches produced six memorable strikes in little over 24 hours.
The central defender has been without a club since leaving Championship (second-tier) side Aston Villa following their playoff defeat by Fulham at Wembley Stadium last season.
Images from the English Premier League matches played on Wednesday
"It's an honour to welcome Didier Drogba to the Impact," said team president Joey Saputo.
Photos from the English Premier League matches played on Saturday
'It has been good on pitch and off pitch,' Lampard said.
Chelsea extended their impressive turnaround under new coach Thomas Tuchel with a 2-0 home win over in-form Everton on Monday as Kai Havertz played a key role in both goals on his return to the starting 11.
New manager Frank Lampard is confident the Premier League club do not need to bring in new players to taste success.
The head of FIFA's medical committee Michel D'Hooghe has stated his support for Chelsea's former club doctor Eva Carneiro, who has brought a legal case against the club for constructive dismissal, the BBC reported on Tuesday.
Guardiola said City had plenty of options, with Gabriel Jesus the only main striker fit and ready but Ilkay Gundogan and Raheem Sterling are able to slot into the role.
Images from Sunday's English Premier League matches.
Chelsea manager Jose Mourinho has lost an appeal against the suspended one-match stadium ban and 50,000 pounds ($76,115) fine he received last month, the Football Association said on Thursday.
Leicester go five clear after win at Everton
English Premier League champions Chelsea have given their full backing to under-fire manager Jose Mourinho following the team's torrid start to the season.
"After receiving the report from the expert, The FA is satisfied that the words used do not constitute discriminatory language under FA Rules," the FA said in a statement.
Cesc Fabregas might have been "Made in Arsenal" but all that matters for his manager Jose Mourinho is that he has been playing "phenomenal" football for top-of-the-table Chelsea.
England goalkeeper Joe Hart paid the price for a series of recent errors when Manchester City manager Manuel Pellegrini left him out of the team for their Premier League match against Norwich City on Saturday.
Champions Leicester City will begin their Premier League title defence with a trip to newly promoted Hull City on August 13, according to the 2016-17 fixtures released on Wednesday.
Kurt Zouma and Eden Hazard scored the goals the goals in a match that saw Diego Costa play central character.
Goalkeeper Petr Cech believes Arsenal are ready to clear the final hurdle needed to end the Premier League title drought, and said he was overwhelmed by the support he has received from fans and teammates at his new club.
IMAGES from Champions League matches played on Tuesday.
Chelsea agreed a deal to sign Real Madrid striker Alvaro Morata, subject to the Spain international agreeing personal terms and passing a medical.
The brilliance of Chelsea's Eden Hazard ended Liverpool's 100 percent start to the season as Maurizio Sarri's side enjoyed a 2-1 win at Anfield in the League Cup third round on Wednesday.
Manchester City shook off the impact of a COVID outbreak in their ranks to outclass Chelsea 3-1 at Stamford Bridge
Didier Drogba is expecting a 'crazy' Stamford Bridge atmosphere.
Inspirational manager Juergen Klopp has rekindled the Anfield flame though and delivered the club's 19th top-flight title, one behind arch-rivals United's record of 20, after finishing runners-up to City in a thrilling race last season.
The racist chants took the shine off a great day for Chelsea who have tightened their grip on fourth place.
Under pressure from the chasing pack and rocked on their heels by a Charlie Adam bolt from the blue, Chelsea showed cool heads to extend their Premier League to seven points on Saturday with a 2-1 home win over Stoke City.
Chelsea manager Antonio Conte has said that the League Cup will provide an opportunity for him to assess the development of the youngsters in his squad.
News of all that transpired on and off the field.
La Liga leaders Barcelona beat Real Madrid 1-0 to all but knock their rivals out of the title race on Saturday, while second-placed Atletico Madrid stayed seven points behind the Catalans with a 2-0 win at Real Sociedad on Sunday.
Jose Mourinho downplayed the importance of the eight-point gap that Premier League leaders Manchester City hold over his side after a 1-0 loss at Chelsea 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.