Chelsea came from behind to thrash Leeds at Elland Road and reach the Capital One Cup semi-finals.
Luciano Becchio finished a counter-attack to give the home team a half-time lead and hope of a famous win.
But Juan Mata fired an equaliser just after the break and Branislav Ivanovic headed the Blues into the lead.
Victor Moses found the bottom corner before substitute Eden Hazard slotted home and Fernando Torres tapped in to seal Chelsea's place in the last four.
It is a result that maintains their unbeaten record against Leeds in cup competition and gets them back to winning ways after defeat by Corinthians in the Club World Cup final.
