Last Updated at 9:38 pm, April 18th 2012
That's it! Advantage Chelsea as Di Matteo's team seal a remarkable first-leg 1-0 victory!
Bosingwa comes on for the final moments.
Xavi makes way for Isaac Cuenca as Barca make a late change.
Fabregas' night is over as the ex-Arsenal man makes way for Thiago Alcantara.
Busquets goes into the book after a sliding challenge on Ramires.
Mata makes way for Kalou as Chelsea make their first change of the night.
There's another yellow card, this time for newcomer Pedro for a challenge on Cole.
Ramires is hit with the first booking of the night and Barca have a free-kick from an even better position than the last.
Pedro comes on for Alexis Sanchez as Barca make their first swap.
@Ladanafrah tweeted to say of Drogba - "despite his diving and the amount of time he spends on the floor. He actually brought credibility to the game. #Proud"
@carlosbriones99 doesn't expect Chelsea's lead to last for long. He tweeted - "barça is gonna make a comeback later and they're gonna win 3-1."
Steve the 'Passionate Gooner' says - "Chelsea will need to keep it tight at the back, they cannot afford to make any defensive errors, clearly they'll also need to keep a reign on Messi. Keep a clean sheet and if they can score a second that will put them in the driving seat."
@GeorgieHaikali tweeted - "drogba still showing what his capable of....im on chelsea's side today....come on blues."
Gabriel Sutton thinks Barca's patience could pay off - "I think Barcelona are playing a very patient game at the moment. Chelsea have done well to get the goal just before half time but I can see barca scoring an equalizer in the second half. They certainly won't panic. Verdict 1-1."
Jack Dry is glad Di Matteo left Torres on the bench - "Great match! Chelsea have been completely dominated but they have their crucial goal from who other than Didier Drogba who was picked over Fernando Torres. Good choice from di mateo."
Sam Thornton is backing the Blues to get another - "terrific goal from Chelsea I reckon we will score one more goal with lampard. Come in Chelsea!!!"
Gordon Phillips thinks Barca's class will shine through - "Anyone who loves football will hope that this wonderful Barcelona team will eventually make class tell. Chelsea have been a good impersonation of Stoke and if that's what you like........"
Darryl from Rochdale wrote in to say - "Thats what Drogba can do if he stops spending too much time rolling around on the floor."
The whistle blows and it's Chelsea 1 Barcelona 0 at half-time! What did you all think of that? Tweet me @SkySportsRachG or email email@example.com.
GOAL! DROGBA OPENS THE SCORING TO MAKE IT 1-0 TO CHELSEA!
@HeroHussain tweeted - "Chelsea to win tonight! I have faith as a Chelsea supporter! Come on lads go on and tame the Catalan giants!"
Bob Baumann thinks Wilshere could be onto something - "Barcelona 1, Chelsea 0. Fabregas with the winner after a beautiful 3 pass combination inside the area. Xavi-Messi-Fabregas."
Alain Cabache, following the game all the way from Boston, USA, says - "Don't understand fans that are saying that Chelsea are going to do well and then predicting scores like 2-1 or 2-2. For Chelsea to do well they must first and foremost keep a clean sheet. Any Chelsea goals are a bonus, the more the better! If we do concede, then we must score 2 or 3 more than them. 2-1 or 2-2 are terrible scores to go to Nou Camp with. 3-0 to Chelsea."
Charlie Goldie wrote in - "I never knew that Pepe Guardiola's team have never won against Chelsea, good to know. I think the blues will win 2-1, Chelsea seem a whole new side under Di Matteo, and they have been impressive in Europe this season, I think they have to make the most of the first leg as they are at Stamford Bridge, I think Chelsea will keep their unbeaten record against Guardiola tonight."
@AdamBourne2 doesn't fancy Chelsea's chances. He tweeted - "Messi to score first and Barca to win 2 nil."
Blues fan Ben thinks Chelsea can edge it this evening - "As a Chelsea fan, I believe we have to defend well and hopefully string some passes together and counter. 2-1 to Chelsea is my prediction with Drogba and Lampard (penalty) scoring and Messi scoring for Barca."
Dave Jessop wrote in - "Just been playing Football Manager and the Champions League Semi first leg in 2016 was Chelsea 0 Barca 1 - Could that be an omen? - going for 2-0 to Barca BTW."
@RowanElliott has tweeted to say - "I think Chelsea are going to surprise us all tonight! 2-2 final score."
Here's a betting update from our friends at Sky Bet on tonight's game - Chelsea have been well backed in the build-up to tonight's clash and are consequently cut from 4/1 to 7/2 with a draw 3/1 and Barcelona 7/10. Didier Drogba leads the line for the Blues, who are 7/2 to make the final, and is price boosted from 8/1 to 9/1 to open the scoring.
UEFA Champions League Group A
UEFA Champions League Group B
UEFA Champions League Group C
|1||Paris St Germain||6||13|
UEFA Champions League Group D
|3||FC Viktoria Plzen||6||3|
UEFA Champions League Group E
|4||FC Steaua Bucuresti||6||3|
UEFA Champions League Group F
UEFA Champions League Group G
|2||Zenit St. Petersburg||6||6|
UEFA Champions League Group H