PREVIEW: CHELSEA V ASTON VILLA FA CUP SEMI-FINAL: A TOTALLY DIFFERENT GAME.

None of us will forget the game the other weekend as it came as one of the surprise results of the season for both sides and for the Premier League. Chelsea haven't forgotten our defeat at Vila earlier in the season but come Saturday 5pm GMT, the slate is wiped clean and its a different game altogether.

Tomorrow is Aston Villa's second trip to Wembley in the matter a month or so after their defeat to Manchester United in the Carling Cup. Sorry Villa fans (if you are reading this) to go on about it but I want to make what in my opinion is a valid point. After the 7-1 defeat two weeks ago I found it astonishing to read the various blogs/sites calling for O'Neill to be sacked. The fact that this is your second trip to Wembley goes to show the progress as a team and a club you have made under Martin O'Neill and Chelsea will be in doubt about the task ahead tomorrow.

Villa would of been left fuming, disappointed, embarrassed and deflated after the game at the Bridge and as O'Neill has said himself they have an early opportunity to put things right. Villa have injury concerns about the impressive James Milner and Richard Dunne who has been immense for them this season and O'Neill would want both of them playing if he feels he can beat Chelsea.

The Villa strength no matter what side is selected will be pace and natural width down the wings, supported by hard working ball playing midfielders. Each will look to feed into O'Neill's big man-little man double act up front with I believe will be the dangerous John Carew and Gabriel Agbonlahor.

No matter what happened the other week, Villa are a threat not to be taken lightly in any means. With the added incentive of putting the other week behind them expect a bright and fast start from Villa and Chelsea will need to be up and at it to make sure we match them in the early stages.

As us Chelsea fans know Villa are up against a fluid and impressive Chelsea side that has turned the corner in recent weeks. I was calling for weeks for Ancelotti to switch the tactics from 4-diamond-2 or 4-1-3-2 formation to the tried and trusted 4-3-3 with two natural wingers each side of the main striker through the middle. Since he has done that, we have been flying. 12 goals in the two league games before Old Trafford last weekend had the players playing with renewed confidence and a swagga about our play.

The performance against United was fantastic as we started looking like a side on form and confident. We controlled and dominated the first half and took a well deserved lead. We stood firm in the second half and built on our lead and gained an important victory in the race for the title.

There has been three players that have shined once more for Chelsea since the switch and that has been Deco of all people, who I have made known on here once or twice that its no great loss if he goes, Malouda who is different class and is know one of the form players in the Premier League and last but not least Frank Lampard. In this formation Frank is back on the goal trail and has made more runs into the box than he did in the previous five games.

Aston Villa will have their hands full tomorrow, of that there is no question but for us Chelsea fans it will be down to who Ancelotti decides to start with in the front three positions in the side. Ancelotti has gone on record to state that the back four (Ferriera, Alex, Terry and Zhirkov) will be the same. The midfield three (Mikel, Lampard, Deco) will be the same, so it leaves Ancelotti to pick from Malouda, Drogba, Anelka, Joe Cole and Kalou for the remaining positions.

Based on current form Malouda has to start. Joe Cole should get the nod for the right wing and I predict Ancelotti will go with Drogba tomorrow to start which is hard on Anelka because although he may not have scored goals in recent weeks, his workrate in that formation and link play has been fantastic.

Both sides have had a full week to prepare for the Semi-Final and will be fresh and looking to get a foot-hold in the game early doors. Villa's 4-4-2 formation up against Chelsea's 4-3-3 formation will see Chelsea have a man over in midfield so the dilemma for O'Neill is whether or not he decides to change the formation to nullify Chelsea's potent midfield.

One thing is for sure these are two good and strong sides and I wouldn't be surprised if the game turns into a classic Wembley contest. As a Chelsea fan I am nothing but confident about the game tomorrow as I have to be based on our performances in the last few weeks. Villa fans will be looking for their team to put in a better performance to put things right but if they are honest, will have the 7-1 in the back of their minds. If Chelsea score early tomorrow than Villa will more than likely fear the worst. If Villa score early, then game on.

As a neutral you are hoping for a good entertaining game, as a Chelsea & Villa fan this is a hard one to call as the massive Wembley pitch, the atmosphere and quite simply the occasion can have an effect on the side.

I predict there will be only one goal in it. I have to say Chelsea 1-0 and who better than Didier Drogba to continue his amazing goal scoring record in recent times at Wembley.