Frank Lampard couldn't claim another memorable Carabao Cup scalp as his valiant Derby County side lost 3-2 to Chelsea at Stamford Bridge.
Rams manager Lampard was returning to the club where he made 600 appearances during his playing career, with Derby looking to add to their surprise third round win over Manchester United.
They gave a good account of themselves in a breathless and evenly-matched first half, bouncing back from own goals by Fikayo Tomori and Richard Keogh to equalise twice through Jack Marriott and Martyn Waghorn.
But Cesc Fabregas' strike gave Chelsea the lead at half time and they were much improved after the break to close out the win, although David Nugent could have taken the game to penalties when he hit the post late on.