Manchester City defeated Chelsea for the second time in four days with a 4-0 win in the third round of the FA Cup to pile the pressure on Blues manager Graham Potter
City were three up at half-time thanks to Riyad Mahrez's magnificent free-kick, Julian Alvarez's penalty and Phil Foden's tremendous team goal
 Mahrez added his second and City's fourth from the spot late on to further underline the gulf between the two teams
Pep Guardiola's team can look forward to a tie at home to Arsenal if the Premier League leaders overcome Oxford United on Monday evening
 As for Chelsea, it is the first time this century that the Blues find themselves not among the clubs in the fourth round
The result adds to the pressure on Potter, who was only appointed in September
 Chelsea have now lost six of their last nine matches in all competitions and have not tasted victory away from home since beating Red Bull Salzburg in October
It was Mahrez who scored the only goal of the game when these teams met in the Premier League on Thursday and he broke the deadlock again here
 His curling free-kick from the right edge of the box arrowed into the top corner beyond Kepa Arrizabalaga's dive
If Chelsea could do little to stop that, the second was self-inflicted
 Kai Havertz led with his hand when trying to clear a corner at the near post and the VAR could not miss it
 Alvarez, starting for the first time since his World Cup win with Argentina, just about beat Kepa
City had dropped points against Brentford and Everton in their last two Premier League games in front of their home supporters but they did not go two up then
 With that advantage, the confidence grew and Guardiola's side really started to purr
What a goal their third of the first half was
 Kyle Walker's trickery got them moving, Foden and Rodri trading flicks, Mahrez found Walker's overlapping run and there was Foden from close range to tap in
 It was a goal typical of this City side at their absolute best
Though the pace dropped thereafter, another good move brought the fourth goal when Kalidou Koulibaly clumsily bundled Foden to the ground and the referee had little choice but to point to the spot
 Mahrez did the rest, lashing the ball high into the net
There might even be an argument that City look more fluid with Alvarez making these unselfish runs up front than Erling Haaland, the team's prolific striker, stood there banging them in himself
 Either way, it is the sort of problem that Potter would love to have
Throughout the second half, sections of the 8,000-strong travelling support chanted the name of his predecessor Thomas Tuchel, having earlier sang the name of the now departed owner Roman Abramovich
 All is not well at Chelsea
 The Man City machine rolls on
Chelsea will be sick of the sight of Mahrez but Guardiola will be grateful for the games against them because they have been critical in reigniting the winger's season
 His goal against them in the Carabao Cup in November now looks to have been a turning point
The City boss had been critical of Mahrez's form earlier in the season - and he defended that assessment of the player's contribution even when praising him after the game
"He was not the same
 I was completely fair
 He was not playing at the level he is playing right now
 Sometimes I have to let them see the mirror of who they are
 It is not about the quality, you have to do more in football
"But since the World Cup he is playing really well
 A fantastic free-kick and he played an outstanding game, playing wider, playing narrow
 A good game
""We made an incredibly intense game against a top side
 Next round of the FA Cup
 Happy to still be in there
"I have a feeling that we have incredible human beings and players
 When we have this incredible hunger, we don't give them time to think about it
 They did not have time
 When that happens it is because we are alive
"As a manager, you realise something is dropping when these actions we are not doing
 It is easy for me as manager because I can show them the clips and say, 'This is what you need to be doing
' This is what we need to do
""I thought we were second best to a very, very good side
 Obviously, we are not in a great moment ourselves and even though it was a cagey first 20 minutes we couldn't attack the backline well enough, we couldn't attack as well as we would like
 I think Manchester City do really well in terms of stopping you doing that
 At the same time, we struggled
"It was a fantastic first goal in terms of a strike from a free-kick, and a strange penalty and you are caught in a position where it is 2-0 and you have to chase the ball against Manchester City
 You are caught between trying to commit more men and not getting opened up
"So the first half was painful and tough for us all
 Second half, we had to respond and I thought there were some positives there in terms of the young players
 I thought they gave everything and showed their quality but we are disappointed we went out of the competition
 Congratulations to Man City
 They deserved to win, of course
"next game is at in the Carabao Cup quarter-finals on Wednesday, live on - kick-off 8pm
Pep Guardiola's side then travel to neighbours  for a Premier League clash on Saturday - kick-off 12
30pm
next fixture is away to west London rivals in the Premier League on Thursday - kick-off 8pm
The Blues then host  in another top-flight clash on Sunday - kick-off 2pm
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