Luiz own goal and van Persie's smart finish. Juan Mata and Ramires hauled the Blues level with efforts either side of half time, only for Ivanovic and Torres to both see red. Javier Hernandez pounced to grab the winner with 15 minutes remaining.
Did you know?: Chelsea knocked United out at the semi-final stage of the 2004/2005 League Cup with a 2-1 victory at Old Trafford following a goalless draw in the first leg in London. However, Sir Alex's team beat the Blues 1-0 in the same competition in 2002 with a late strike by Diego Forlan.
Opposition boss: Roberto Di Matteo earned the right to manage the club on a permanent basis by steering Chelsea to FA Cup and Champions League success last term. The ex-Italy international earned praise from Sir Alex for his efforts, with the Scot stating: "I was surprised they never gave him the job right away when they won the Champions League. He deserved that recognition, although he eventually did get it, there did seem to be a bit of hesitancy on their part in terms of appointing him."
Star man: Although Di Matteo is likely to shuffle his pack, there is the feeling he will send out a strong side in a bid to exact revenge for Sunday's defeat. Terry, Gary Cahill, Mata and Torres started in the previous round, but there could be an outing for Victor Moses. The summer signing from Wigan is out to make an impact at his new club and could cause problems with his pace if selected.
Quote/unquote: "They'll obviously go away a little bit bitter with us at how it's gone and they'll look to put things right on Wednesday but we'll come here full of confidence and look to go through to the next round." Michael Carrick (on MUTV).