Pedro came off the bench to grab an extra-time winner and send Chelsea through to the FA Cup semi-finals with a 2-1 win at Leicester City.
The former Barcelona winger capitalised on some poor goalkeeping from Kasper Schmeichel to nod home N'Golo Kante's cross in the 105th minute and end the Foxes' hopes of a place at Wembley.
Earlier, Jamie Vardy's second-half equaliser had cancelled out Alvaro Morata's first goal since Boxing Day to send an entertaining tie beyond the 90 minutes.
Although Chelsea boss Antonio Conte said beforehand the FA Cup was "not important" to him on a personal level, it now represents the best chance of silverware for the soon-to-be dethroned Premier League champions and his strong starting XI reflected that.
Despite that it was Leicester who started the better, Marc Albrighton firing Danny Simpson’s right-wing cross narrowly past the right-hand post.
But Chelsea gradually found a foothold, thanks largely to Kante’s intelligent promptings against his former club while wing-backs Victor Moses and Marcos Alonso were finding plenty of space down the flanks.
Wilfred Ndidi forced Willy Caballero into a fine save down to his right after 20 minutes but the visitors looked the more assured in possession.
Morata had already fired straight at Schmeichel from the edge of the box before he finally ended his goal drought three minutes before the break.
Willian led a swift counter attack before slipping a delightful through ball to the former Juventus man and he showed a cool head to clip past Schmeichel and into the net.
Leicester came out strongly after the break and Riyad Mahrez could have levelled within two minutes, his 45-yard attempt following a poor clearance from Caballero drifting wide of goal.
Vardy then skewed a header off-target when completely unmarked eight yards out but he was not to be denied with 15 minutes to go.
Mahrez was the architect with a run and cross down the right flank that caused chaos inside Chelsea's six-yard box. Vardy and Vicente Iborra saw shots blocked before the latter forced another effort on goal. Caballero made a smart save low to his left but the loose ball fell nicely for Vardy to power into the net.
|Khachanov enjoys home comforts with comprehensive Kremlin Cup win|
|Isner wants Wimbledon tie-break rule named after him|
|Hummels lauds ´outstanding´ Lewandowski|
|Liverpool´s defensive improvement no accident – Gomez|
|Pliskova overpowers defending champion Wozniacki in Singapore|
|Marquez dislocates shoulder celebrating MotoGP title|
|Henry taking positives from opening Monaco defeat|
|A-League Review: Mariners held as Bolt considers move|
|Dominant Svitolina ends Kvitova hoodoo in Singapore|
|Pereira warns Juventus to expect ´pumped up´ Manchester United|
|D´Antoni backs NBA to ´sort out´ Lakers-Rockets brawl|
|Mixed feelings for champion Marquez after Dovizioso crash|
|Bolt offered contract by Central Coast Mariners|
|Anthony accuses Rondo of spitting after Lakers-Rockets brawl|
|Martial insists he has good relationship with Mourinho|
|Bautista to replace Lorenzo at Phillip Island|
|Emery wanted Lacazette at Paris Saint-Germain|
|Wallabies centre Hodge suffers fractured ankle|
|Koepka claims top ranking with CJ Cup win|
|Dramatic Dovizioso crash gifts Marquez MotoGP title in Japan|
|LeBron´s home debut ends in defeat, Walker makes NBA history|
|Rondo, Ingram and Paul exchange punches in Lakers-Rockets clash|
|Dodgers to face Red Sox in World Series after beating Brewers|
|Valverde doesn´t care about extending Barca contract|
|Qualifying speed a ´positive surprise´ for Ferrari´s Vettel|
|I was in a different headspace – Hamilton revels in Austin pole|
|Barcelona can cope without Messi – Pique|
|Allegri: Juventus abandoned Genoa clash|
|Sale: Hospital visit was because of belly button ring|
|Valverde accepts Barcelona will miss Messi|
|No Messi or Ronaldo in El Clasico for first time since 2007|
|Barcelona have not won a Clasico without Messi since his debut|
|Ramos calls for Real Madrid unity after latest loss piles pressure on Lopetegui|
|Hamilton has title in sights after storming to Austin pole|
|Inter, El Clasico and more - the games Messi will miss with broken arm|
|End of Messi-Ronaldo duel good for LaLiga - Simeone|
|Messi out of Clasico with fractured arm|
|Awesome Ashton marks Sale bow with hat-trick|
|Klopp hopes for positive Henderson prognosis amid Liverpool injury issues|
|Benitez ´convinced´ Newcastle can survive despite seventh defeat|
|Barcelona 4 Sevilla 2: Messi injured but champions go top|
|Kovac relieved by Bayern´s timely victory|
|Strasbourg 2 Monaco 1: Sy howler and Grandsir red card cost Henry in first match|
|Leicester City defender Chilwell signs new six-year contract|
|PSG´s Tuchel hopes Verratti and Di Maria can face Napoli|
|Liverpool star Salah had no fear during scoring drought|
|Alonso´s 2019 plans not damaged by McLaren´s IndyCar decision|
|Edinburgh outclass troubled Toulon, Wasps and Bath play out thrilling draw|
|Barca concern as Messi substituted with worrying arm injury|
|Howe: South coast derby draw a fair result|
|Our heads were in Manchester – Allegri left fuming at Juventus´ loss of focus|
|Derby County 2 Sheffield United 1: Marriott blunts Blades with 77th-minute winner|
|We have so many problems – Jokanovic alarmed by Fulham defensive woes|
|Huddersfield Town 0 Liverpool 1: Salah snaps winless streak|
|Pellegrini ruing injuries after Yarmolenko hurts ankle|
|Villarreal 1 Atletico Madrid 1: Simeone´s side denied LaLiga top spot|
|Gracia: Not easy to dominate Wolves like that|
|Isner´s Finals hopes hindered by Stockholm defeat|
|Dyche incredulous at refereeing decisions in Man City thrashing|
|Juventus 1 Genoa 1: Champions´ winning run ends despite record Ronaldo goal|
|´Fantastic´ Lamela urged to find consistency by Pochettino|
|You don´t want to lose any players - Young speaks out on Wade NFL speculation|
|Championship Review: Smith gets off to a winning start, Leeds beaten|
|Guardiola hails extraordinary Fernandinho after Burnley drubbing|
|Pochettino lauds Lloris as one of world´s best after West Ham heroics|
|Paris Saint-Germain 5 Amiens 0: Ten wins in a row for PSG as Neymar rests|
|Cristiano Ronaldo nets record 400th league goal|
|Marcelo backing beleaguered Lopetegui despite Madrid slump|
|Garcia dazzles to hit the front at shortened Valderrama Masters|
|Cardiff City 4 Fulham 2: Paterson gets Bluebirds off the mark|