Oscar produced a wonder strike to win the FA Cup tie with Stoke City at the Bridge this afternoon.
His match-winning reward, a trip up to the Eithad Stadium to face Manchester City following the draw made immediately after the match.
The Brazil midfielder curled a special shot that had to be perfect to get past an impressive Asmir Begovic and it was as it curled and ripped past the helpless goalkeeper with 27 minutes on the clock.
Jose Mourinho chose an experienced starting 11 and also on the bench, ditching the chance to bring in any youngsters for the experience.
Stoke for their part looked as of they came to London with the intent of holding the Blues for as long as possible and hoping for a goal on the break.
Thankfully they failed.
Samuel Eto'o thought he had scored in the third minute when collected the ball from Eden Hazard just inside the Stoke penalty area.
A180 degree turn and shot in one quick movement saw the ball inch just wide of Asmir Begovic's left upright.
A minute later and a fine break on the left by Stoke saw the ball crossed into the Chelsea area, where David Luiz tried in vein to out jump Peter Crouch. Thankfully for the Brazil defender, Crouch could only glance the ball past Mark Schwarzer but also the Australia stopper's goal for a goal kick.
Hazard had a half-chance shout for a penalty on 13 minutes. On receiving the ball, following a one-two with Oscar, the Belgium, appeared to go over the right thigh of Wilson Palacios. However, neither he not the Chelsea players called for a spot lick and a TV replay showed that it was not and it was simply Hazard losing his balance.
Eto'o, Oscar or Andre Schurrle could have put the Blues ahead two minutes later, but each was guilty of indecision, and Stoke's defenders eventually snuffed out the quick counter-attack.
With 27 minutes on the clock, Eto'o was tumbled over about 25 yards out, slightly right of centre Luiz and Oscar stood over the ball. While most people felt that Luiz would try his 'Ronaldo' dipping free-kick, Oscar decided to alter all that by producing the perfect curling shot that left Begovic completely helpless at the ball arrowed past his out-stretched right hand and bellowed the back of his net to put the Blues deservedly one up.
Lampard could have doubled the lead after unplayable Hazard cut through the Stoke rearguard, but in-running Lampard, at the far post failed to squeeze the ball home.
In the space of 60 seconds two goals could have been scored - one apiece, first Stephen Ireland saw a vicious left-footer zip into Schwarzer's side-netting then Oscar, following another quick counter-attack saw his powerful drive from 20 yards smash off Begovic's left upright.
A piledriver from Lampard was the last action of the half, largely dominated by the home side but with Stoke showing enough to suggest a set-play or a lack of concentration might still be Chelsea's undoing,
No changes were made in personnel at half-time and the game continued in the same vein, with the Blues on the attack.
Schurrle, who scored twice when the Blues lost 3-2 at the Britannia Stadium in the league in November, and who also hit the bar before being replaced, suffering an injury, proceeded to hit the bar again, three minutes after the restart.
A half chance from Jonathan Walters curled just wide of Schwarzer's goal in 53 minutes while Schurrle, again had an effort on target - Begovic, this time its equal.
A Marco Arnautovic free-kick enlivened the 700 Stoke fans out of a 6,000 allocation, who thought he had curled it past Schwarzer, when in fact the effort went well wide of the goalkeeper's right post.
Schurrle made way for Ramires with 20 minutes left on the clock.
Ex-Blue Mark Hughes, the Stoke manager followed suit and replaced Palacios with Oussama Assaidi two minutes later.
Lampard could have finished Stoke off on 75 minutes with a trademark daisy cutter, but his effort, while on target was not wide enough and Begovic made a fine diving save.
Eto'o failed to slot home a minute later after brilliant set-up play by Hazard.
Oscar saw his number up with 10 minutes to go, and the Brazil midfielder was replaced by countryman Willian.
Again Hughes followed, Mourinho and brought on Charlie Adams for Arnautovic.
Begovic produced a sensational save, tipping over his crossbar a blistering 20-yard free kick by Luiz as the clock ticked down with five minutes remaining.
Demba Ba came on for Eto'o while Marc Muniesa came on for Erik Peters.
Overall, it was job done, with a minimum of fuss and no injuries to worry about.
Teams: Chelsea - Schwarzer; Ivanovic, Cahill, David Luiz, Cole; Matic, Lampard; Schurrle, Oscar, Hazard; Eto'o
Subs, Cech, Azpilicueta, Terry, Mikel, Ramires, Willian, Ba.
Stoke City: Begovic; Cameron, Shawcross, Wilson, Pieters; Walters, Nzonzi, Ireland, Palacios, Arnautovic; Crouch
Subs, Sorensen, Muniesa, Whelan, Adam, Guidetti, Assaidi, Shotton
Referee, Chris Foy