Aston Villa fell to a 4-0 defeat against high-flying Leicester City at a rain-soaked King Power Stadium.
Harvey Barnes put the hosts ahead five minutes before the interval, knocking the ball past Pepe Reina, who had raced out from goal, and firing past Villa's recovering defenders.
Foxes substitute Jamie Vardy doubled the deficit from the penalty spot shortly after the hour, before adding his second of the encounter 11 minutes from time.
And Barnes also completed his brace late on for third-placed Leicester to cap a miserable Monday night across the midlands for Villa.
Dean Smith's side will be looking to get back on track in the Premier League at home to Chelsea on Saturday.
Villa showed two changes from the Carabao Cup Final, Reina recalled in between the sticks while Conor Hourihane was also restored to the starting XI.
And it was Hourihane and Wembley goalscorer Ally Samatta who both enjoyed sights of goal inside the opening eight minutes, while Reina superbly kept out Jonny Evans’ close-range header at the other end.
The Foxes started to dominate as the first half wore on and Kelechi Iheanacho headed wide a clear-cut opening from six yards just after the half-hour mark.
Reina got down smartly to save from Barnes in the 37th minute but the City winger opened the scoring shortly afterwards.
He used his pace to latch on to a ball over the top from Marc Albrighton and knocked it past the onrushing Reina before taking a touch inside and drilling into the net from 20 yards.
Reina did well to deny Iheanacho when he raced clean through minutes after the restart. But there was nothing he could do to stop Leicester's second goal in the 63rd minute.
Referee Michael Oliver pointed to the spot for handball against Tyrone Mings and, following a VAR check, sub Vardy stroked the resulting penalty past Reina.
Head Coach Smith turned to Anwar El Ghazi and Keinan Davis off the bench, Frederic Guilbert testing Kasper Schmeichel in the 78th minute.
But it was Leicester who added two late goals to pile on the misery, Vardy firing inside the near post from 10 yards before Barnes swept home a first-time finish.
Villa: Reina, Guilbert, Engels, Mings, Targett, Elmohamady (El Ghazi 63), Luiz, Nakamba, Hourihane (Davis 67), Samatta, Grealish.
Subs: Nyland, Taylor, Konsa, Drinkwater, Trezeguet.
Goal: Barnes (40, 85), Vardy (pen 63, 79)
Dean Smith’s side are back at Villa Park on Saturday as they play host to Chelsea in the Premier League (ko 5.30pm).
Tickets are once again sold out. Thank you, as always, for your magnificent support.