"In a way I am more pleased with the first one than the second as I need to score easier ones.
"I'm pleased it's three in two games and I hope that will continue.
"I was looking for a pass but I couldn't see one so I tried a chip and fortunately it went in."
* "I am delighted with the win and glad we do not have to face them in a replay.
"Portsmouth kept going until the end and it was a nervous last five minutes.
"We needed to show a good response from last week and I am thrilled we managed to get the victory to keep progressing in the FA Cup."
* "The FA Cup is massive as far as I'm concerned.
"It's the one tournament I always looked at as a boy. I dreamt of playing in it and winning it.
"We went really close two years ago but lost to Arsenal on penalties. Hopefully I can get my hands on it this year."
"We kept the pace and tempo when Portsmouth started to tire.
"I always thought we were in control of the game and in the second half we got into top gear.
"With the experience Portsmouth had in the team it was never going to be easy.
"But I'm pleased we're through to the next round and a home draw is all you can hope for."
Of the two disallowed goals:
"For the first one the linesman was in the right position - but he didn't see it - it's incredible.
"It wasn't inches over the line - it was a foot over it. It's amazing."
As for Larsson's effort: "It was onside and it was a fantastic finish."
On Rooney's second goal:
"A marvellous piece of imagination and audacity. When he came on he just brightened up the place. If he gets onto a run of goals he will make some difference to our team."
"Having the vision and audacity to do it at that time of the game – one goal up with 10 minutes to go – is really great. It was a fantastic goal and I remember Eric doing that in the FA Cup against Sheffield United at Bramall Lane [in 1995]."
Portsmouth coach and former United star Joe Jordan:
"Everyone needs a little help and it's a question of how far do you go, but if the technology is there to help referees it should be used
"This was a very big game for both teams and United would have wanted to know if Vidic's header was a goal, and we thought we should have had a penalty in the first half. I gather Vidic's header was over the line but some decisions go against you and some go for you.
"Rooney scored both goals and he is a quality player, we can all see that.
"The second goal was exceptional in the manner it was taken but also vital to Manchester United in that it killed the game.
"At 1-0 we were still in the match but that goal put the tie beyond us.
"We were pretty comfortable up until the first goal but I can't fault the players for their attitude. We put a lot of work in."