The final whistle blows and it's the Basel players who are all smiles after they cause a 2-1 away upset. That result did not look likely after Oscar's goal on the stroke of half-time but Basel responded well and made their chances count.
A chance for Eto'o but his first touch isn't brilliant and Voser gets back to make a challenge. The ball balloons up to Sommer.
There will be an additional four minutes at Stamford Bridge.
Basel playing the clock down trying to pass it around but Eto'o wins back possession for the home team.
Chelsea heaping the pressure on in the final couple of minutes but the Basel defence stands firm. Oscar's shot is hit with venom, but straight at Sommer.
Taulant Xhaka comes on now for Basel, with Salah given a well-earned rest.
The home side a little shell-shocked by Basel's two swift goals and they suddenly look a little short of ideas in the final third.
Schar is back in play as Chelsea look to find a very important equaliser.
A lull in play at Basel defender Schar is receiving treatment. The away side are down to 10 men currently.
Basel substitution with Arlind Ajeti replacing Valentin Stocker.
Basel passing the ball around now and still look dangerous.
GOAL STRELLER! Well this has been coming since Basel levelled. Basel captain Marco Streller gets his head onto the near-post corner and Cech fails to keep it out.
Chelsea opened up on the counter once again and Streller's shot is deflected just wide for a corner.
Chelsea have switched to two up front now and it seems to be taking a little while for the new system to come together, whereas Murat Yakin's side sense more goals.
Mikel straight into the action and plays it back to Cech as Basel look to attack.
Schar breaks dangerously and tries to slot it to Salah but Ivanovic just stops the vital pass finding its intended destination.
A double change for Chelsea, with Demba Ba coming on for Lampard and Mikel on for van Ginkel.
More danger from Basel and their tails are up now. Stocker just misses out on a through ball to Streller.
Salah not too happy now as he want a free kick but the referee plays on.
Ivanovic flying forward down the middle now but Basel are able to tackle him just before it becomes too dangerous.
Hazard trying to hit back straight away but his cross from the left doesn't find Lampard.
GOAL SALAH! I can only apologise to Chelsea fans for tempting fate. Basel are level through the dangerman Mohamed Salah. A cross from the left finds it's way through to the winger and he, like Oscar, curls the ball perfectly low into the bottom corner.
Streller caught offside now at the other end. Basel really are struggling to mount a serious challenge on Cech's goal.
Eto'o almost in on goal as Lampard plays a first-time ball through, but Sommer is sharp off his line to smother the threat,
Oscar tries another clever ball through but it's not quite directed well enough this time.
Salah tries to make it to the byline back on the right wing but he overruns it.
It's the first change of the match and Juan Mata gets his chance. He replaces Willian, who has had a quiet debut.
Chelsea very much in charge now and looking likely to add to their tally.
Ivanovic wins the header again and his header looks menacing but it's cleared for a corner by the covering defender.
Diaz sees yellow for a foul on Willian. Lampard will fancy swinging this into the mixer.
A moment of danger for Chelsea as Stocker gets the wrong side of the defence but he's adjudged to have handled it and the referee pulls him up.
Hazard with a good chance but he blasts over the top. Oscar ignores the run of Lampard down the middle and plays a deft reverse ball to Hazard, who really should have hit the target.
Oscar finding loads of space in the pocket in front of the Basel defence.
Safari receiving treatment now after he's caught by Willian's arm in an innocent looking challenge.
Streller tries his luck from range but the ball trickles harmlessly wide of Cech's left-hand upright.
Lampard finds Ivanovic from the corner but his towering header goes straight into the hands of Sommer.
Oscar tries his luck from a similar position and it's another good try. The shot is deflected over the bar for a corner.
Cech forced into defensive duties with his head. He's calmly out to head a through ball clear of danger.
Oscar so close to a second it would have been a memorable one. He picks the ball up on the corner of the area, cuts inside and unleashes a bending effort which strikes the crossbar.
Good link up between Streller and Stocker sees the ball come to Safari down the right but he fluffs his cross into the stands.
Chelsea deal with the corner and start to build their own attack.
Throw down the right for Basel but they opt to play it back to their centre-halves. The patient approach produces a corner as Cole puts Safari's cross behind.
Great from Oscar again in the middle of the park. He's extremely gifted on the ball, but he certainly knows how to fight for it when needed, too.
Sio robs Luiz but Ivanovic is covering and plays it back to Cech.
Willian beats his man on the right and makes the byline but his cross is cleared at the front post.
Eto'o is found by Cahill and he looks to have done enough to hold the ball up and create something, but is then muscled off it by Ivanov.
Sio pokes the ball through towards Stocker down the right but he's a few yards offside.
Foul on Willian near the half-way line and it's switched to the left. Oscar wins a throw in deep in the Basel half but the away team get it away.
Chelsea get the second half under way and, as in the first, they're stroking it around at the back.
Sumar: "I stopped playing Luiz as defender in FIFA 13 and it has done wonders for the team."
A quick update from Sky Bet, who now understandably offer just 1/6 for the home win. Frank Lampard to score next at 9/1 looks a touch more tempting, while another Price Boost sees Eden Hazard to score next and Chelsea to win 3-0 at 50/1. Head to Sky Bet if you're interested.
Some half-time feedback now from Usman in Nigeria: "Can someone Jose to sign a centre half and move David Luiz to the midfield. To balance the books, he should sell Mikel. Luiz is a natural midfielder but a dreadful defender."
The feast of goals I was predicting before kick-off doesn't look like happening but Basel will have to have a go in the second half, which could result in a more open encounter.
The Oscar strike proved to be the last meaningful action of the opening 45 minutes and Chelsea head into the break a goal to the good. Deservedly so given their overall dominance in terms of possession. It was their first shot on target, but Mourinho will love that won't he?
GOAL OSCAR! In the final minute of the first half, Oscar breaks the deadlock. Lampard threads it through and the Brazilian finishes with aplomb to the bottom corner.
Hazard whips in a tempting cross from the left and it finds it's way to Cahill, whose shot from the edge of the box is really travelling, but it's blocked.
The free kick is deal with well enough and now Chelsea have a free kick in the Basel half.
Yellow card for van Ginkel after he brings down Sio. Chance for Basel to get the ball into the Chelsea are from the resulting free kick on the left.
Streller tries to bundle his way through the Chelsea back line but Ivanovic is over doing the covering and he slams it out for a throw in.
Basel haven't had much of the ball but aren't keeping it wonderfully well when they do.
A bit of frustration around the Bridge now as Eto'o concedes a needless foul.
Salah pops up on the left now but Oscar is back to help Ivanovic and Chelsea are going forward again.
Ivanovic causing mayhem bombing down the right and he comes inside before finding Hazard, whose flick goes to an off-side Willian. Better from Chelsea, but the Brazilian could have avoided the flag there.
Basel try another attack down the right but Cech comes out to meet the ball and cut out any danger.
The corner comes to nothing yet again but Chelsea are back in possession and keeping the ball moving.
Ivanovic gets forward down the right and his low cross is smacked behind by Schar. Another corner for the home side.
Wastful from Stocker this time as Basel start an attack.
Oscar does brilliantly bursting through the middle but his attempted through ball towards Eto'o doesn't quite find its way to the Cameroon star.
A tough tackle from van Ginkel in the middle of the pitch, which is deemed a little too tough by the referee. No cards yet, though.
A half-chance for Basel and it's Salah down the right again. He's in space, cuts inside Luiz and tries to curl one to the top corner. However, it keeps rising and doesn't trouble Cech.
Luiz finds Willian on the left with a lovely pass but the new man loses out.
The game is opening up a little now and Chelsea may be more suited by Basel coming onto them.
Eto'o finds Hazard on the edge of the area and his slight miscontrol opens up a shooting opportunity, but the Belgian blazes high and wide.
Sio gives the ball away needlessly with a back-flick just as Basel are looking to build nicely.
Lampard with a shot from range which goes well wide. Chelsea claim a deflection but the officials wave away the protests.
Plenty of skill and close control from the Chelsea midfielders but they're as yet unable to create antything clear-cut.
Big shout for a free kick in a very dangerous position as Hazard is blocked but the referee is having none of it.
Lampard plays it calmly back to Cech in the Chelsea goal following a midfield battle.
Lampard tries to find Eto'o in the left channel and it results in a throw in deep in the Basel half.
A bit of a lull in play for the time being, with Chelsea once again happy to just keep the ball and wait for the away team to come out.
Basel have a good chance to get the ball into the box but it doesn't get past the first defender.
Chelsea very much having the lion's share of possession, but the longer it goes on Basel will fancy their chances of pinching something.
Luiz spraying the ball all over the place, as is his wont. He's almost playing as a holding midfield man.
Basel mount their first serious attack, with the bright Salah finding space down the right but Cahill blocks the cross, with Streller the target.
Oscar battles down the left and wins a corner, which he takes himself. There is a real scramble as Eto'o jumps with the keeper and Sommer is arguably a shade lucky to be awarded the free kick.
Sio finds Stocker on the left but Cole is at hand to make the clearance. Basel not committing men forward yet.
Eto'o into the action now and he wins a corner, which again is taken short. Basel clear but Chelsea soon win the ball back at Sio is tackled when attempting a break.
Chelsea trying to play at a high tempo but Basel doing well in keeping them at arm's length.
Hazard tries to run in behind the Basel defence but Ivanovic's long-ball is over hit.
It's a solid enough start by Chelsea but Eto'o hasn't had much of it thus far and Chelsea will need to get their lone striker into the thick of things before long.
Hazard dropping a bit deeper now and making things tick, but Basel reasonably comfortable so far and seem happy enough to play on the break.
Another corner resulting from a good Willian run but it's played short and nothing materialises for the home side.
Salah does well when picked out by a long ball but Ashley Cole is not going to be easy to pass and the England man wins a free-kick after muscling the winger off the ball.
Chelsea having a lot of the ball and Willian wins another corner on the right. The delivery is much better this time but it's headed away.
Oscar, Hazard and Lampard all showing for the ball nicely in the middle of the park.
Basel seem content to let Chelsea play the ball around in their own half for the time being, with the home side just probing away currently.
Streller links up with Frei down the left but the ball into the box goes through to Cech.
Good skill between Willian and Oscar results in a corner on the right. Lampard takes it but it doesn't clear the first man.
Chelsea now with some decent possesion at the back and they win a throw in down the left side after the ball's played forwards by Luiz.
The away side get proceedings under way and Chelsea immediately win the ball in midfield, before Basel try to calm things down passing it around at the back.
The vastly experience Marco Streller could pose the Chelsea back-line most to think about, but it'll be interesting to see how his strike partner Giovanni Sio fares. The Ivory Coast international was brought in from Wolfsburg during the summer.
Juan Mata not starting games for Chelsea before the transfer window closed left many thinking he must have been in line for a move away from Chelsea. But it appears Mourinho just doesn't fancy the Spain international.
Daniel Cross is quite confident the home side will prove too strong for their opponents, as they were across two legs on their way to winning last season's Europa League. Daniel has emailed: "I think the Blues are going to put in a good showing tonight and will win 3-0. Willian to feature."
Gill Power isn't as happy as some with Jose Mourinho's team selection, saying: "Where's Fernando Torres??? He's the main man! Mourhino said he Is going to build his confidence and he drops him again..."
Chris Green from Huddersfield feels, like myself, the Swiss Super League champions could ruffle a few feathers if Chelsea aren't absolutely at their best. He says: "Despite Chelsea being at home this evening, I think this game could be a tough one. Basel may come from a weak league, but they'll certainly fancy their chances against the Blues if they have a good start. In football, any game can be a challenge, so if the Blues underestimate the Swiss, it may come back to haunt them."
Neil Cheesman sounds pretty happy with the line-up, commenting: "Fantastic to see experience AND youth in the Chelsea line and Jose showing the value of Lampard's experience... 3-0."
Sky Bet make Chelsea hot favourites at 4/11 to get off to a winning start in their Champions League campaign, with Basel 8/1 and the draw chalked up at 4/1. Our friends at Sky Bet also have a few Price Boosts for tonight's match including Samuel Eto'o to score first at 5/1 and Chelsea to win 2-1 at 9/1. I'm expecting goals at the Bridge and can certainly see the away side playing their part. A correct score of 2-2 is priced at 18/1, which could be worth a small interest. Head now to Sky Bet to place your pre-match and in-running bets.
As you can see from the team sheet below, Brazil forward Willian makes his debut as Jose Mourinho's Chelsea look to start their Champions League campaign with a Group E win against Basel. Six years to the day since his most recent Champions League match as Chelsea boss - a draw with Rosenberg which marked the end of his first spell in charge - Mourinho makes five changes from the side which started the weekend loss at Everton, with Marco van Ginkel, Frank Lampard, Oscar and Gary Cahill coming in alongside Willian, a summer capture from Anzhi Makhachkala.
Chelsea team: Cech, Ivanovic, Cahill, Luiz, Cole, Oscar, van Ginkel , Lampard, Willian, Eto'o, Hazard. Subs: Schwarzer, Mata, Mikel, De Bruyne, Ba, Terry, Azpilicueta.
Basel team: Basle: Sommer, Voser, Schar, Ivanov, Safari, Salah, Diaz, Frei, Stocker, Sio, Streller. Subs: Vailati, Philipp Degen, Ajeti, David Degen, Delgado, Sauro, Xhaka.
Good evening and welcome to our live text commentary of tonight's Champions League Group E clash between Chelsea and Basel at Stamford Bridge. If you'd like to share your views and predictions before kick-off, contact me at Matthew.Brocklebank@bskyb.com. Kick off is at 1945BST.