Darwin Nunez came off the bench to score a dramatic 99th-minute winner and send Liverpool four points clear at the top of the Premier League with victory at struggling Nottingham Forest.
As the game drifted past the eight added minutes announced by the fourth official, Nunez, playing his first game since suffering a muscle injury at Brentford on 17 February, found the bottom corner with a glancing header from Alexis Mac Allister's cross, sparking bedlam on the Liverpool bench and in the stands.
While flares were lit in the away end and Jurgen Klopp celebrated wildly with his team, Forest players surrounded referee Paul Tierney at the final whistle.
Coach Steven Reid was shown a red card as they fumed at the decision to give Liverpool the ball after Ibrahima Konate went down with a head injury shortly before the goal.
Forest had possession when the game was stopped but the game restarted with the ball at the feet of Liverpool goalkeeper Caoimhin Kelleher and the away side kept the ball, went down the other end and eventually found the winner.
It was Liverpool's first league win at the City Ground since 1984 and ensures that they will be top of the table heading into next Sunday's crucial match against champions Manchester City.
With the game goalless heading into the final seconds, and title rivals City and Arsenal still to play this weekend, Klopp's side faced the prospect of falling to third by Monday night before Nunez's last-gasp intervention.
Defeat for Forest leaves them just four points above Luton Town in the final relegation place having played two games more and with the outcome of their financial breach case still to be decided.
Forest had the best chance of a forgettable first half when former Liverpool forward Divock Origi's through ball sent Anthony Elanga clean through but the attacker was denied by the outstretched left leg of Kelleher.
Luis Diaz and Andy Robertson came close for Liverpool either side of half-time before Elanga's first-time shot fizzed wide at the end of a flowing Forest move.
As the away side continued pushed for a winner at the other end, clear chances were not forthcoming, but Liverpool kept going and were rewarded deep into stoppage time as Nunez expertly found the net.
Nunez ensures Liverpool title charge rolls on
Over the past 10 days, an injury-ravaged Liverpool have shown an enviable knack of just being able to find a way to win. Their young players have been at the heart of that but on Saturday it was their star striker who made sure that, somehow, they got over the line.
With the return of Nunez, Dominik Szoboszlai and Wataru Endo to the squad, there was a slightly more familiar look to Klopp's side in Nottingham, although they remain without a host of first-team players.
However, those senior players who have remained fit in recent weeks have been asked to go again, and again, and again - and for much of the game it showed. It was a tired performance from tired players with a precious little in the way of a spark.
The introduction of Nunez on the hour mark did not change the performance of the entire side but in the Uruguayan, Liverpool have a one-man spark.
He immediately gave them a new dimension and while he is a better player than the 'agent of chaos' moniker he is often given, there is no doubt his presence regularly seems to discombobulate opposition defences.
As Liverpool pushed to break the deadlock, Nunez was always on the scene as the ball came into the box but it never quite bounced his way.
His chance came as the clocked ticked towards 99 minutes and - for a player derided for his wastefulness in front of goal - he was clinical. A header just guided into the corner to solidify Liverpool's place at the summit.
A performance to forget but a victory to remember for Klopp's men. They keep finding a way.
Forest fury after cruel late blow
With 98 minutes on the clock, Forest manager Nuno Espirito Santo would surely have been happy as his side looked set to take a point off the league leaders courtesy of a solid, stubborn performance.
Perhaps his only frustration would have been their failure to make the most of a couple of very presentable opportunities in each half.
Two minutes later and he was left to come to terms with a brutal last-minute defeat and a healthy dose of perceived injustice.
Forest were adamant they should have had possession of the ball in the Liverpool third when play restarted after a stoppage for a head injury to Konate.
Instead, Liverpool were given possession and Forest were back defending again. That they regained possession a couple of times and had the chance to clear prior to the goal will do little to quell the feeling that they have been wronged.
Who knows what might have happened had they been given the ball back? What Forest know for sure is what happened after they weren't.
With games running out there is no time for encouraging performances, they need points and will feel they had one snatched away from them today.
Player of the match
AwoniyiTaiwo Awoniyi
with an average of 8.29
Nottingham Forest
Squad number9Player nameAwoniyi
Squad number27Player nameOrigi
Squad number7Player nameN Williams
Squad number10Player nameGibbs-White
Squad number28Player nameDanilo
Squad number40Player nameMurillo
Squad number21Player nameElanga
Squad number32Player nameOmobamidele
Squad number14Player nameHudson-Odoi
Squad number26Player nameSels
Squad number15Player nameToffolo
Squad number16Player nameDomínguez
Squad number22Player nameYates
Liverpool
Squad number9Player nameNúñez
Squad number62Player nameKelleher
Squad number10Player nameMac Allister
Squad number4Player namevan Dijk
Squad number5Player nameKonaté
Squad number26Player nameRobertson
Squad number7Player nameDíaz
Squad number2Player nameGomez
Squad number19Player nameElliott
Squad number3Player nameEndo
Squad number42Player nameClark
Squad number21Player nameTsimikas
Squad number8Player nameSzoboszlai
Squad number76Player nameDanns
Squad number18Player nameGakpo
Squad number84Player nameBradley
Line-ups
Nottm Forest
Formation 4-2-3-1
- 26Sels
- 7N Williams
- 32Omobamidele
- 40Santiago Costa dos Santos
- 15Toffolo
- 16DomínguezSubstituted forDaniloat 79'minutesBooked at 90mins
- 22Yates
- 27OrigiSubstituted forAwoniyiat 65'minutes
- 10Gibbs-WhiteBooked at 90mins
- 14Hudson-Odoi
- 21Elanga
Substitutes
- 1Turner
- 6Sangaré
- 8Kouyaté
- 9Awoniyi
- 18Felipe
- 19Niakhaté
- 28Danilo
- 37Duarte Ribeiro
- 53Gardner
Liverpool
Formation 4-3-3
- 62Kelleher
- 84BradleySubstituted forTsimikasat 84'minutes
- 5Konaté
- 4van Dijk
- 26RobertsonBooked at 59minsSubstituted forNúñezat 60'minutes
- 10Mac Allister
- 2Gomez
- 42ClarkSubstituted forEndoat 60'minutes
- 19ElliottSubstituted forSzoboszlaiat 76'minutes
- 18GakpoSubstituted forDannsat 84'minutesBooked at 85mins
- 7Díaz
Substitutes
- 3Endo
- 8Szoboszlai
- 9Núñez
- 13Adrián
- 21Tsimikas
- 53McConnell
- 67Koumas
- 76Danns
- 78Quansah
Referee:Paul Tierney
Attendance:29,603
Live Text
Match ends, Nottingham Forest 0, Liverpool 1.
Felipe (Nottingham Forest) is shown the yellow card.
Second Half ends, Nottingham Forest 0, Liverpool 1.
Goal! Nottingham Forest 0, Liverpool 1. Darwin Núñez (Liverpool) header from the centre of the box to the bottom left corner. Assisted by Alexis Mac Allister following a corner.
Attempt blocked. Kostas Tsimikas (Liverpool) left footed shot from the centre of the box is blocked.
Corner, Liverpool. Conceded by Harry Toffolo.
Delay over. They are ready to continue.
Delay in match because of an injury Ibrahima Konaté (Liverpool).
Corner, Nottingham Forest. Conceded by Virgil van Dijk.
Attempt blocked. Morgan Gibbs-White (Nottingham Forest) right footed shot from outside the box is blocked. Assisted by Callum Hudson-Odoi.
Attempt missed. Darwin Núñez (Liverpool) header from the left side of the six yard box misses to the right. Assisted by Kostas Tsimikas with a cross following a corner.
Corner, Liverpool. Conceded by Neco Williams.
Danilo (Nottingham Forest) is shown the yellow card.
Dominik Szoboszlai (Liverpool) wins a free kick in the defensive half.
Foul by Danilo (Nottingham Forest).
Morgan Gibbs-White (Nottingham Forest) is shown the yellow card.
Corner, Nottingham Forest. Conceded by Ibrahima Konaté.
Attempt blocked. Taiwo Awoniyi (Nottingham Forest) right footed shot from outside the box is blocked.
Foul by Virgil van Dijk (Liverpool).
Ryan Yates (Nottingham Forest) wins a free kick in the defensive half.