DF Davide Zappacosta, 6 - Provided two assists with risky crosses, though it's hard to know how much credit to give him when they both found Derby players.
It was a mad old night, especially a chaotic, compelling first half, with Chelsea benefiting from two own goals, prompting Derby's magnificent 4,100 fans in the shed to ask politely of their hosts, "Shall we score a goal for you?"
Highlights of the Carabao Cup fourth round game between Chelsea and Derby.
Sarri has stated that he wants his star player back "as soon as possible", but admitted he doesn't know if will be in time to line up against the Rams.
Coming only a matter of days after Lampard was left fuming after Jayden Bogle scored an equally ridiculous own-goal, this Tomori one will take some beating. "I did leave here quietly (in 2014), slightly out of the back door, so it's good to walk through the front door and get that".
Hazard has made a brilliant start to the Premier League season following a return of seven goals in nine games in the English top flight.
"I thought Frank Lampard making the box was exceptional", he said. Tomorrow we are going to decide whether he is going to be part of the team'.
"The staff, fans, players, it is an incredible club with a great history".
Chelsea are still unbeaten in competitive games this season.
Despite the gulf in stature of recent times, Derby and Chelsea have had a fairly equal record in their past meetings.
On Tuesday, Burton Albion and Bournemouth booked their places in the quarter-finals while Premier League leaders Manchester City play Fulham on Thursday.
Chelsea - who made eight changes for the game but still fielded 11 internationals - were ahead again before the break, but it wasn't without controversy. His forward runs were just as risky to Chelsea as to the opponents; both visiting goals came from the space vacated on his flank.
Ruben Loftus-Cheek is now enjoying the best goalscoring spell of his career, netting in two consecutive games for the first time.
Chelsea benefited from two Rams own goals, only for the Championship visitors to equalise on each occasion before Cesc Fabregas' 41st-minute strike proved decisive.
"There wasn't a tear in the eye, but it was emotional, " Lampard said.