The two sides go head-to-head in a repeat of the 2000 Final, which was the last to be played at the old Wembley as Chelsea ran out 1-0 winners.

Portsmouth face either Tottenham or Fulham, who have to replay, in the other semi-final at 4pm on Sunday, April 11.

"To do so well in the first half and come so close is really disappointing," Long told the Chronicle. "There were 10 minutes of madness when it all slipped away from us. "

But I think we can hold our heads high.

Aston Villa are a great side and I hope they go on and win the competition which would show just how close we came.

"We came in at half-time 2-0 up. We had to get through the first 10 or 15 minutes after the break because we knew Villa would come at us. "

But they got the goals and I think we were a bit unlucky.

Everyone played well but when our heads were down we should have picked ourselves up.

"It wasn't to be but it was a good run in the cup I suppose."

Saturday's win earned STG607,500 for Portsmouth, but - as they are in administration - they have to seek approval from the FA to keep Cup winnings if it is determined that they have met all their obligations to competitive clubs.

If not the money could be withheld as Pompey still owe creditors, the debt of the club continuing to dominate even more south coast headlines than their Cup exploits of their hopeless position at the foot of the Premier League.

They must now to write to the FA and make a representation to the Professional Game Board, who will ascertain if it is appropriate for Avram Grant's side to collect their outside Cup income.

An inspired display by Tottenham goalkeeper Heurelho Gomes prevented them from progressing at the first time of asking as he made a string of fine saves to keep out efforts from Bobby Zamora, Damien Duff, Brede Hangeland and Zoltan Gera.

Fulham boss Roy Hodgson couldn't hide his disappointment at the final outcome and fears his side may have missed the boat.

He said: "I'm only the more disappointed because it was a home game and the advantage now passes over to Tottenham because they will be at home for the replay.

"We're pretty evenly matched and I'm disappointed we couldn't get the goal that would have put us through.

"We were close at the end but, on the basis of the play, 0-0 was a fair result, although it was anything other than a dull cup tie because of the quality and commitment on show.

"The atmosphere was magnificent.

The Cottagers would face Pompey on the weekend of April 10th and 11th.

Chelsea are paired with Aston Villa in the other semi-final after they saw off Stoke and Reading respectively in Sunday's two last eight ties.

King pulled up suddenly during the Premier League match against Wigan on Sunday and was replaced by Sebastien Bassong.

The 29-year-old, who is believed to torn a muscle in his leg, looks certain to sit out the FA Cup fifth round replay against Bolton Wanderers at White Hart Lane on Wednesday.

"It looks like a bit of a tear," the Spurs boss admitted.

"Ledley was so solid during the match. He makes the game look easy.

"He is such a fantastic player. He gives a real presence to the team and a real air of confidence to the players and me. It is a bit of a loss, but Bassong came in and finished the job."

Meanwhile, Redknapp also revealed that Aaron Lennon is making good progress from his injury problems and is closing in on a return to first-team action.

Following a goalless first half, in which Jamie O'Hara twice nearly opened the scoring for the visitors, former Arsenal starlet Quincy Owusu-Abeyie got Pompey's first - and his first for the club - in the 66th minute.

Hassan Yebda crossed the ball in from the right, reaching John Utaka who subsequently slotted in Quincy who coolly slotted home from just inside the penalty area.

Pompey were pegged back four minutes later when Rickie Lambert headed past David James, but soon retook the lead when Hayden Mullins released Quincy, who duly sent Aruna Dindane through to chip Kelvin Davis for his second goal in a week.

Saints had a Lee Barnard goal disallowed and their day went from bad to worse.

Belhadj added a third for Avram Grant's team when he raced through and sold Davis a dummy before finishing, and man of the match O'Hara volleyed home the fourth after a sweeping move.

Didier Drogba put the home side in front after only two minutes, galloping clear of the Bluebirds' defence before flicking the ball past Andy Marshall with the outside of his right foot.

It looked like the Premier League leaders would steamroll over their lower league opponents but, frustratingly, they failed to add to their single goal early on. Carlo Ancelotti's side were made to pay for their profligacy ten minutes from the break when Michael Chopra, completely unmarked by a defence missing the absent John Terry, headed in a cross by Chris Burke.

Chelsea went in at the break level but it took only seven minutes after the restart for them to restore their advantage. Drogba slipped an excellent ball through to the oncoming Michael Ballack, who made no mistake.

From that point onwards it was all Chelsea. The rampaging Drogba saw his effort deflected into the path of his young striker partner Daniel Sturridge, who slotted the ball through the legs of Marshall and into the back of the net.

The Blues confirmed their progress through a brilliant bullet header by Salomon Kalou late on.