Chelsea came from behind three times against Manchester United before a nine-goal thriller was settled by Ramires' extra-time shot clinched a 5-4 victory and a spot in the League Cup quarterfinals.
Three days after losing an acrimonious Premier League encounter to United, Chelsea was heading out of the tournament until Eden Hazard scored from the penalty spot in 90th minute to make it 3-3.
In extra time at Stamford Bridge, Daniel Sturridge and Ramires gave Chelsea an apparently comfortable lead - until Ryan Giggs scored his second of the night for United, and the game's third penalty, in the 120th minute.
Also, Liverpool's title defense ended when manager Brendan Rodgers' former club Swansea won 3-1 at Anfield, and Norwich beat Tottenham 2-1.
AP