In front of a crowd of just under 59,000 United eased into the quarter finals with a comfortable win over Norwich to extend there unbeaten run to 6 games. It was a much changed United line up with many players doing themselves no harm.
Two-goal Chicharito wasn't the only player to shine as the youngsters Adnan Januzaj and Wilfried Zaha both excelled, whilst at the back the old guard of Rio Ferdinand and Nemanja Vidic returned to the defence to oversee a clean sheet.
United had much the better of the play throughout, with Januzaj and Zaha both prominent in attack. The former played the no.10 role with presence and panache and the latter threatened frequently on the right in his second appearance for the Reds - his first start since August Charity Shield appearance.
Zaha set the tone after 13 minutes with a teasing cross for Hernandez, whose shot on the spin was deflected wide. Chicharito twice went close with first-half headers but his, and United's, opening goal came from the spot.
Januzaj jinked one way and another in the box and Leroy Fer clumsily clipped his heels. Chicharito confidently sent Norwich keeper Mark Bunn the wrong way to give United the lead.
Chicharito added to his tally after the break as he headed home at the second attempt from Alex Büttner's inviting cross on 53 minutes, while Anders Lindegaard made a good save from Robert Snodgrass' header, one of the few occasions he was called into action. The game was delayed for 10 minutes as Snodgrass was carried off with a bad looking neck injury but hopefully he will get the all clear soon.
Phil Jones added gloss to his own impressive midfield display by volleying a Zidane type goal for United's third on 87 minutes and in the fourth of 11 added minutes substitute Fabio bundled home the ball in a one-on-one with Bunn.
It was a wonderful display full of attacking intent and hopefully now the team can gain confidence and push on.