Chelsea showed no mercy in dispatching a Manchester City side full of kids 5-1 at Stamford Bridge in the F Cup 5th round.
Strikes from Diego Coasta Willian, Gary Cahill, Eden Hazard and Betrand Traore destroyed the limp resistance put up by City in the second half.
The first half however was different as the dominant Blues took the lead through Costa before being pegged back by David Faupala.
But the floodgates opened in the second period and the Blues even had the luxury of seeing a penalty saved from Oscar.
Th first effort of the game fell to City striker David Faupala, on four minutes, when he skinned Branislav Ivanovic before blasting a right-footer, at Thibaut Courtois's near post, which he managed to parry away to safety.
But the Blues should have taken the lead on 14 minutes when a brilliant interchange between Pedro and Cesc Fabregas saw the Spain winger clip the ball past a floundering Willy Caballero but his left-footed effort rebounded off the far post instead.
Diego Costa hesitated from a deft Fabregas pass, and was blocked before he could get his shot away, as the home side piled on the pressure.
An edge of the penalty area snap shot by Fabregas saw Caballero dive to his right to smother the goal-bound left-footer on 22 minutes.
The goal finally came for the Londoners on 35 minutes from the head of Costa.
Fabregas chipped the ball forward to Hazard who sent across goal the perfect byline drive and Costa was free to bullet-head the ball past Caballero.
But the lead was short-lived and City were level with 90 seconds, when Cesar Azpilicueta kicked the ball against the in-running Faupala who smashed the ball high into the back of the net following a incisive counter-attack
Caballero then produced a point-blank save to deny Pedro to keep his side level after excellent set-up play by Fabregas.
The were no changes of personnel at half-time from either side but it took the Blues just three minutes to restore the one-goal lead. Willian started the move off from his own half, racing deep into. City territory before passing to Hazard. The Brazil winger continued his run and received the ball back from Hazard. He took one touch in the City penalty area, before unleashing a low drive that cut across Caballero and into the back of the net.
Number three came six minutes later from the right boot of Gary Cahill took full advantage of City's inability to clear the ball to crash the ball past Caballero from eight yards out.
City kids just collapsed at this point and goal number four duly came.
Martin Demichelis hauled down Hazard on the edge of their penalty area on 66 minutes. The midfielder took the kick him self, and arrowed the perfect rasper past a prone Caballero.
With 18 minutes to go Demichelis bundled over substitute Betrand Traore in the penalty area. This time Caballero was the hero and he anticipated the direction other sub Oscar took and steered the spot kick away from goal.
Goal number five looked like it would fall to Traore, but the Bukino Faso striker saw his sliding left-footer rebound off the City post and away to safety.
Goal number five came from the glancing header from Traore.a minute from time, which inched over the line, having struck the City post.
It was a well deserved victory for Chelsea.
Chelsea, Courtois; Azpilicueta, Cahill, Ivanovic (c), Baba Rahman; Fabregas, Mikel; Pedro, Willian, Hazard; Diego Costa
Subs, Begovic, Miazga, Matic, Loftus-Cheek, Oscar, Traore, Remy
Man City, Man City team: Caballero, Zabaleta, Adarabioyo, Demichelis, Kolarov, Fernando, A.Garcia, M.Garcia, Celina, Iheanacho, Faupala
subs, Man City subs: Hart, Clichy, Humphreys, Kompany, Fernandinho, Barker, Sterling
Referee: Andre Marriner