The England worldwide has netted one goal and made two assists in the west London side's 3-0 victory over Burnley at Turf Moor at the weekend.
If Derby do end up knocking out Chelsea, there would surely be different questions being asked of the club, as is the work of the fans and pundits, so it is best to leave their business alone.
It will be the Blues' third match in the space of six days, having beaten BATE Borisov and Burnley in the Europa League and Premier League respectively.
We are predicting that the Blues team to face Derby will be one that is nearly unrecognisable from the one that battered Burnley 4-0 on Sunday.
Champions Manchester City host Fulham on Thursday.
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A quieter second half eventually livened up, with substitute Nugent turning the last of three Derby openings into the base of the far post, forcing Lampard to settle for the consolation of receiving the adulation of the supporters, who consistently sung his name.
Highlights of the Carabao Cup fourth round game between Chelsea and Derby.
Son scored his first two goals of the season and another of Tottenham's forgotten men, Fernando Llorente, added one in a 3-1 win over West Ham in an all-Premier League London derby at the Olympic Stadium. But, thankfully, the draw for the quarter-finals will occur directly following Chelsea's game against Derby County on Sky Sports, live from Stamford Bridge.
Ruben Loftus-Cheek could start as a result and Mateo Kovacic could play to try to play himself into form.
Blackpool reduced the deficit 10 minutes later through Paudie O'Connor, who was later shown a straight red card for a foul on Pierre-Emerick Aubameyang to end any hope of a comeback.
Key Stat: Chelsea have conceded three goals in their past three matches across all competitions.
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Ruben Loftus-Cheek is now enjoying the best goalscoring spell of his career, netting in two consecutive games for the first time.
Frank Lampard looks like he could become a very good manager, but this might be a bridge too far at this point in his career.
He only scored three goals across his time with Real Madrid and Maurizio Sarri will need all the midfield efforts he can find with Jorginho and N'Golo Kante also in the side.
Roy Hodgson's side will have undoubtedly been despondent at the news Eden Hazard will likely be fit for the weekend, but the Crystal Palace rearguard will also feel that recent performances prove they are up to the task of containing the league's top-scorer.
Ahead of kickoff, banners with the words "GOAL AFTER GOAL, GAME AFTER GAME" and "FOREVER A BLUE, ALWAYS A LEGEND" flanked a giant image of Lampard in the Matthew Harding Stand, emblazoned with the number 211 - his peerless goal tally for Chelsea.
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