Crystal Palace made it three successive Premier League wins for the first time since 1994, beating Aston Villa 1-0 to power towards safety.
After referee Howard Webb had reversed a decision to award Palace a second-half penalty at Selhurst Park, Jason Puncheon fired the ball in off the post following fine work from Yannick Bolasie.
Puncheon's 76th-minute strike, his third goal in two games, ensured Palace's impressive revival under Tony Pulis continued.
The result leaves the London club, who have kept four clean sheets in their last five matches, seven points clear of the relegation zone.
Villa, meanwhile, have lost four straight games and now sit just four points above third-bottom Fulham.
Lambert welcomed back Karim El Ahmadi, Fabian Delph and Gabriel Agbonlahor following injuries, while Ciaran Clark was also recalled.
Pulis named an unchanged team but, after Kagisho Dikgacoi went off injured, he was forced into an early substitution, sending on Marouane Chamakh and reverting from a 4-5-1 formation to 4-4-2.
Almost immediately, Chamakh's strike partner, Cameron Jerome, hacked Agbonlahor's downward header off the Palace goalline.
Then, following neat build-up play from Delph and Grant Holt, Damien Delaney flung himself in the way of Ashley Westwood's piledriver to make a decisive block.
In the 36th minute, Palace created a great opportunity with a cleverly worked free-kick. Mile Jedinak shaped to shoot but instead gave the ball to Puncheon, who slid the ball through for Bolasie inside the area.
Bolasie claimed to have been impeded by Holt as he looked to shoot, but as the ball drifted wide the referee waved away Palace's penalty appeals.
Four minutes after the restart, Agbonlahor tried his luck from the edge of the box, but Julian Speroni made a comfortable save.
Jerome then missed a glaring chance to score only his second goal in 26 Premier League games this season. Bolasie tricked Matthew Lowton with step-overs and unleashed a shot, which Brad Guzan blocked. The ball fell to Jerome, unmarked at the back post, but with the net unguarded he fired the ball against the crossbar.
The lively Bolasie's low drive from the edge of the box went just wide on the hour as Palace ramped up the pressure.
Webb pointed to the spot in the 68th minute when the Palace players appealed for handball against Clark, but changed his mind after talking to one of his assistants.
Bolasie then sprinted down the left and provided a fine cross for Puncheon, who controlled the ball neatly, swivelled and fired a low shot home.
Puncheon hit the bar after a quick counter-attack, but Palace had Speroni to thank for keeping all three points.
In the 88th minute, the in-form Argentinian goalkeeper, who turns 35 next month, made a superb save to deny Andreas Weimann from close range, leaving Villa to reflect on an increasingly perilous position in the table.
|Coach: T. Pulis|
for K. Dikgacoi 19'
for C. Jerome 75'
for Y. Bolasie 83'
|Origi eyeing first team place at Liverpool|
|Tottenham legend King encourages Alli to keep his edge|
|Pochettino: Spurs must wait for Rose return|
|Romero eyes Europa League title ahead of birthday trip to Saint-Etienne|
|Mowbray tasked with saving struggling Blackburn|
|Four more years? Celtic´s Dembele not stressing amid Real Madrid links|
|RB Leipzig or Salzburg Champions League ban ´hypothetical´ - UEFA|
|Manchester United have world-class players in every position - Forster|
|James: Zidane´s rotation does not affect Real Madrid|
|Redan to snub Manchester United and sign Ajax deal|
|Giovinco turned down China move ´for now´ - agent|
|Guardiola wanted to destroy Monaco´s 4-4-2, says Fabinho|
|Sagna hails Stones after ´vital´ Manchester City goal|
|Deulofeu loves AC Milan but future ´depends on Barcelona´|
|Monaco lacked intelligence, says frustrated Falcao|
|That is why Manchester City wanted me - Guardiola relishes Champions League thriller|
|Tianjin deny Rooney bid but admit Aubameyang talks|
|Deportivo Saprissa 0 Pachuca 0: Champions League quarter-final evenly poised|
|Gameiro angered by substitution in Atletico win|
|´I give nothing for free´ – Mourinho tells Shaw to learn from Mkhitaryan|
|Champions League quarter-finals still possible for Monaco, says Silva|
|Guardiola asks me for more, more, more - Aguero happy to fight on at Manchester City|
|It was like ice hockey - Monaco vice-president stunned by Champions League clash|
|Proud Griezmann eyes more Atletico history|
|Toure marvels at Caballero heroics in Manchester City-Monaco thriller|
|Buffon hopes to play well against Casillas|
|Schmidt: It is easy to see how Atletico Madrid have reached two finals in three years|
|Falcao penalty miss was key – Jardim|
|Guardiola: If one team can score a thousand, million goals it is Monaco|
|Griezmann hails ´brilliant´ Gameiro as Atletico see off Leverkusen|
|Simeone all smiles after Atletico dismantle Leverkusen|
|Spot-kick revision pays off for Caballero|
|Championship Review: Huddersfield boost top-two hopes, Wednesday beaten|
|Toprak laments bad result as Leverkusen lose at home to Atletico|
|Aguero grapples for glory as strikers shine in Manchester City v Monaco|
|Bayer Leverkusen 2 Atletico Madrid 4: Simeone´s side in control|
|Manchester City 5 Monaco 3: Guardiola´s side prevail in all-time classic|
|AFC Champions League Review: Al Rayyan and Al Ahli off to winning starts|
|Ranieri: Sevilla game can be a turning point for Leicester|
|Allegri confirms Bonucci absence after row|
|Nuno confident Porto can beat Juventus|
|Matthaus encourages Gotze to stay at Dortmund|
|Martial: I love Manchester United and I want to stay|
|I would never force out Manchester United legend Rooney - Mourinho|
|Anderlecht insist Tielemans not leaving on the cheap|
|Leicester can´t afford to live in the past, warns Sampaoli|
|Porto´s home comforts, shot-shy Leicester & Sevilla meet - Champions League in Opta numbers|
|Puyol backs Barcelona for Champions League miracle|
|Sutton´s pie-munching keeper Shaw resigns|
|Coyle leaves struggling Blackburn|
|Sampaoli noncommittal on Sevilla future despite contract offer|
|Higuain backs Dybala to become ´among the best in the world´|
|Ancelotti escapes punishment for middle finger|
|Pie-eating Sutton goalkeeper´s antics under investigation|
|AFC Champions League Review: 2014 winners Wanderers thrashed, Hulk inspires 10 men|
|Zidane reveals Ronaldo´s favourite position|
|Lippi backs Allegri for Juve stay|
|Zidane: Isco knows I love him|
|Rooney returns to United training|
|Higuain confident Juventus can win Champions League|
|Giggs the dream pro-am partner for Manchester United fanatic McIlroy|
|Kane hopes Spurs can get used to Wembley|
|Hazard: I gave everything to come back|
|Like Cantona, Ibrahimovic embraces United pressure - Giggs|
|Wenger: Perez deserves more chances|
|Wenger denies using Sanchez was risky|
|Tite: I wish Messi was born in Brazil|
|Jardim praises ´great striker´ Falcao|
|Reported Barcelona target Sampaoli offered Sevilla extension|
|´Angry´ Messi didn´t celebrate because of criticism – Bauza|
|´He is going to have to do it himself´ – Guardiola backs Aguero|
|Toure backs Sterling and Sane for the top|
|Pique: Barcelona were in deep s*** when Luis Enrique arrived|
|Thoughts of Bayern mauling stopped Wenger from enjoying Arsenal FA Cup win|
|Sutton United 0 Arsenal 2: Perez and Walcott break minnows´ stern resolve|
|Walcott brings up 100 goals for Arsenal|
|Simeone will make late Oblak call for Leverkusen clash|
|AFC Champions League Review: In-form El Arabi gives Lekhwiya dream start, Diop saves Al Ahli|
|Fabinho disagrees with Guardiola over favourites tag|
|Guardiola hails Bielsa as best in the world|
|Jardim insists Monaco will not change style for Manchester City clash|
|Clattenburg´s Premier League career not over yet|
|Dortmund could renew Tuchel deal|
|Chicharito return to form boosts Schmidt´s Leverkusen for Atletico test|
|Iniesta sees Verratti as his successor - Matuidi|
|Ramos did not make history at Sevilla like me - Alves questions Real Madrid captain|
|Vertonghen feels Tottenham deserve silverware|
|Agent denies Lucas Perez exit claims|
|Barcelona forward Neymar to stand trial after losing appeal|
|City history can´t compare to United, Liverpool – De Bruyne wants to make Champions League impressio|
|Europa League the priority for United´s Mata as EFL Cup final looms|
|Winning the FA Cup ´may not save Wenger´|
|Falcao perfect for ´killers´ Monaco - Guardiola wary of Champions League threat to Manchester City|
|Ancelotti asked to explain middle finger gesture|
|Ribery closing in on Bayern Munich return|
|Nani eager for improving Valencia to tackle Real Madrid|
|Rashford eyes Chelsea revenge after huge FA Cup draw|
|Glorious Griezmann and Aguero´s knockout drought - Champions League in Opta numbers|
|Otamendi´s agent talks up Real Madrid switch|
|He has to get used to it – Montella reacts to Bacca boos|
|Low hopes to discover Germany´s Luis Suarez|
|Mourinho unsure if Rooney will recover for EFL Cup final|
|Rami rejects talk of Marseille switch|
|Tarnat tips Manchester City´s Sane to become Germany star|
|I don´t see why he should quit - Begovic tips Terry to continue|
|PSG ´weakened´ without Ibrahimovic, claims Monaco´s Bakayoko|
|Low believes in ´locksmith´ Gotze|
|No pain, no gain for Cristiano Ronaldo|
|Barcelona have no idea how to treat players - Dani Alves slams Camp Nou board|
|Low: Germany´s youngsters must be good enough to beat Messi and Ronaldo|
|Mandorlini replaces Juric at Genoa|
|Liverpool could face ´new´ Leicester – Klopp|
|Corchia excited by Bielsa arrival but Lille future remains uncertain|
|Wenger: I threw up after first loss as coach|
|Conte wants fairytale finish for Terry|
|Iniesta: Barcelona haven´t lost faith in Luis Enrique|
|Mourinho knew Ibrahimovic would be ´massive´ for United|
|Ter Stegen doesn´t understand Barcelona fans whistling|
|´He is doing a fantastic job´ – Bartomeu backs Luis Enrique|
|Guardiola slams ´unacceptable´ Wenger treatment|
|Spalletti: Roma goal machine Dzeko now believes he´s world class|
|Emery refuses to blame referee after PSG are held|
|Montella dedicates AC Milan win to Berlusconi|
|The players don´t need whistles – Luis Enrique hits out at fans|