Alisson was punished for a chaotic second-half spell as Manchester City stretched their lead at the top of the Premier League after a 4-1 win over Liverpool in a heavyweight clash with significant ramifications for the title race
Mo Salah's 63rd-minute penalty had wrestled back momentum for the faltering champions after Ilkay Gundogan - who missed a first-half spot-kick - had made the breakthrough at Anfield shortly after the interval (50)
But two unforced errors in the space of four minutes from Brazillian goalkeeper Alisson allowed Gundogan (73) and Raheem Sterling (76) to dramatically haul the contest - and seemingly the Premier League crown - back in City's favour
Phil Foden then capped an imperious display with a late fourth (83) as Pep Guardiola's ominously-efficient side humbled their hosts
City, on a 14-game winning streak, are now 10 points ahead of Liverpool and five clear of Manchester United, with a game in hand on both sides, while Liverpool, Anfield aura further diminished, have lost three league games in a row at home for the first time since 1963
Jurgen Klopp had called for brave football after back-to-back home defeats blamed on mental fatigue but a game that felt make-or-break for his players started in cagey fashion between two sides brimming with midfielders
Foden was deployed in an improvised forward line against a still-makeshift Liverpool backline but while the Reds' attack had a familiar feel with Sadio Mane returning to the starting line-up, neither side could muster much menace at a stadium that felt pointedly hollow for such a pivotal fixture
Mane flexed his neck muscles to divert Trent Alexander-Arnold's cross just over the bar midway through the half and Ederson was forced to tip a Roberto Firmino half-volley behind soon after as Liverpool warmed to their task
Their steady momentum looked set to be checked when Fabinho's trailing leg caught a shimmying Sterling shortly before the break but Gundogan, so impressive in recent weeks for Guardiola's side, aimed for the top-left corner yet skied his spot-kick
Fireworks lit up the Liverpool sky, an apparent attempt to freshly spark the Merseysiders after that let-off, but Guardiola's tactical tweak - Bernardo Silva pushed further forward to support Foden - instead proved the catalyst as City broke the deadlock
Sterling too easily evaded Alexander-Arnold and though Alisson pushed away Foden's close-range effort, Gundogan this time made no mistake on the follow-up
Curtis Jones flashed a shot just wide as Liverpool sought a swift response but though Klopp's side looked sapped of energy, a searching pass from Alexander-Arnold prompted a rare Ruben Dias error and Liverpool were suddenly level, Salah punishing the tug from 12 yards
Klopp pumped both fists in encouragement as his side ended a goal drought of 410 minutes at Anfield, but he would soon fume at self-inflicted damage as Alisson scuffed a pass to Foden, who dinked to the byline and crossed for Gundogan to score his second
The Liverpool goalkeeper compounded his error by repeating it moments later - passing to Bernardo Silva even closer to goal, and his simple chip was headed home by Sterling for his first goal at Anfield since he left and his 100th under Guardiola
Foden cut inside with seven minutes remaining as City asserted their authority in ruthless fashion and left a flailing Liverpool side clinging to fourth spot
"It feels like the day that Phil Foden has come of age and delivered on that promise that he has shown in the past few years," purred Gary Neville on co-commentary
Back in the  studio, Graeme Souness piled more praise on the City youngster: "I would put Foden at the top of the tree when you look at Maddison, Grealish and Mount
 I think he is arguably the best
 I just think that man is silky, courageous, he sees the picture, he has obviously got a bit of pace
 There is so much to enjoy about this young man
" "Liverpool have been amazing for three years - Champions League final, Champions League win, then winning the Premier League
 They have been at it full pelt
 It is difficult to keep that momentum going for four years
 It is just a natural dip
 I don't think there is a need for too much panic
 They are just going through a bad moment
 It was always going to come at some point
 They just look a bit tired, a bit drained
 It happens
" "Man City showed courage today, bravery to pass forward
 Liverpool were the opposite - you talk about champions
 They didn't put up a fight in the second half
 Man City were outstanding, they were by far the better team
 If Liverpool could've won today it would have been a decent week for them but what a weekend it's been for City
 Foden, what a talent
"Liverpool boss : "The performance was good most of the time
 Really, really good, on a high level
 If we'd played more often like tonight, we would not be 10 points behind City
 The goals, we made massive mistakes
 Against each team it is a problem, against City it's a killer
 And that's why we lost the game
"Ali has saved our life plenty of times, no doubt about that
 he made two mistakes and that's how it is
 I don't know, it's not a real explanation for it but maybe he had cold feet or something
 It sounds funny but could be
 But there's still the opportunity to kick it in the stands
"[Champions League places,] that is of course our main target, that is clear
 We will try everything
 There is enough games to play to secure that - but we have to win games
"Man City boss : "We started really well, especially with a lot of passes
 We cannot play like they play, transitions
 We have to play with a slower rhythm with more passes than usual because they are the best team in the world on transitions alongside Manchester United but they have more years doing this
"In the first half, we could not control the width of Robertson and Alexander-Arnold
 In the second half, we adjusted a little bit our setup
 After, the quality of the players did the rest
"Liverpool travel to Leicester for a lunchtime kick-off in the Premier League on Saturday, with their Champions League last 16 first-leg tie against RB Leipzig taking place in Budapest three days later
Manchester City head to Swansea for an FA Cup fifth-round clash on Wednesday, before returning to Premier League action at home to Tottenham on Saturday evening, live on 
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