Last Updated: 23/11/11 9:39pm
And that's it! Leverkusen seal their passage into the knockout stages but Chelsea's torrid run continues as they suffer a second straight defeat. They need to avoid defeat in their final game against Valencia to ensure qualification as their poor start to the season shows no sign of slowing up. Thanks for your company in Germany and I'll see you next time.
Friedrich clears away to deny Sturridge a one-on-one and Castro picks it up on the right, with two minutes to go, earning a corner off Bosingwa.
Sam goes down under Alex on the edge of the area but no foul is given, as Drogba returns to the pitch.
It looks as though Drogba may be coming back on, while grimacing on some pain, as Alex concedes a free-kick on Schurrle.
Ballack is nudged off the ball by Alex, but more importantly Drogba is down clutching his knee in worrying scenes.
Malouda picks out Drogba with an accurate cross but the striker's effort is poor on the volley and Leno has nothing to do but take the goal kick.
Sturridge again does well to cut inside but then gives it away to Derdioyk as Chelsea pick it up again through Malouda.
Rolfes searches for Sam but he cuts short his run too early and ends up missing out. He might have thought he would be offside.
Sturridge plays a delightful through ball to Drogba but Leno is again on hand to deny Chelsea again.
Chelsea retain possession for a spell, something they haven't done for a while, and earn a throw deep in Leverkusen's half.
Rolfes charges through Chelsea's midfield but Terry cuts him off, as the game swings either way with just over ten minutes to go.
Appeals for a penalty from Chelsea as Drogba goes down under Friedrich, before at the other end Derdiyok fires at goal, with Terry's essential deflection taking it away from goal by inches.
Leverkusen still dominate possession as Bender plays in Sam, but Ramires again makes a crucial tackle to prevent a break into the box.
Sturridge has been a livewire so far, but he plays a terrible ball to Drobga and it goes out for a throw-in.
The equaliser is no more than Leverkusen deserve but as I said you wouldn't rule out another goal from Chelsea, as Bosingwa forces Schurrle off the ball to win a goal kick.
It's a brilliant move from Leverkusen, although slacking from Chelsea, as Sam slips in on the left before chipping the ball across goal to Derdiyok who heads in the equaliser. Game on!
Chelsea attack with Sturridge but Friedrich clears and then Meireles picks up a booking for a late foul on Schurrle.
Schurrle's long ball from the far right side is headed back into play by Kiessling but Terry is there to concede a corner.
Patient play from Leverkusen again, as Chelsea press less, with a loose pass from Rolfes finding the path of only Luiz.
A poor clearance from Friedrich forces a tricky hoof away from goal. There's more goals from both teams to come one feels right now.
Chelsea seem more defensive as Leverkusen continue to pressure their goal, with Kiessling chased down by Bosingwa who does well to win a foul.
Kiessling is causing all sorts of problems as he finds space on the left, but Sturridge intercepts possession and bombs down the pitch before drawing a good tackle from Leno.
A loose pass from Cech nearly invites Kiessling in, but Chelsea recover as the striker fires wildly over from 20 yards.
Leverkusen break forward and Schurrle's cross into Kiessling finds the striker beat Terry to the ball but his header is straight at Cech, as the hosts really start to pile on the pressure.
Leverkusen now look really threatening as the game swings back and forth in terms of possession, with Mata penalised for a foul on Friedrich.
Ballack is tremendously unlucky as he attempts an overhead kick which is parried over by Cech, before the Chelsea keeper is then forced into a brilliant block to deny Kiessling.
Bosingwa charges down the left but gives his pass to Lampard far too early, and the Chelsea midfielder has no chance of retrieving it.
Ivanovic slides in on Sam, catching the ball, but also the man, as the referee thinks about it and then books the Serbian.
Castro receives a ball on the left from Rolfes before his pass to Kiessling catches the striker out of position, before at the other end Drogba spurns a great chance in a similar position to his goal. It should be 2-0 to Chelsea.
Ivanovic bursts forward in the style of an attacking midfielder, before unleashing a drive which is comfortable for Leno.
Castro's corner at the near post nearly finds an acrobatic shot from Kiessling but Terry gets in the way and Chelsea clear the ball to safety.
Mata and Bosingwa, between them deal with Kiessling and concede a corner, which then becomes a throw in after Terry's headed clearance.
Chelsea are back on the attack, with Lampard diving in for Ivanovic's long throw, but his header is straight at Leno.
It comes literally out of nowhere but Sturridge plays an excellent ball into Drogba who turns past Freidrich before blasting his shot into the bottom corner. A vital goal for Chelsea who take the lead!
Chelsea out to 11/4 to pick up all three points and Leverkusen now 5/2 with a draw looking the most likely outcome at 5/4.
Adam Euling writes: "The 1st half hasn't lived up too what I expected I think that the referee should have his say on some decisions and think about situations instead of going straight for his card also not to listen to the appeals of the chelsea players final score Bayern 1 - 1 Chelsea."
Rather a damp squib of a game so far but Chelsea have gradually improved and look much more of an attacking threat than their Germans opponent now. Bayer still look capable of scoring though and had the best chance of the half with Ballack's header which hit the bar. Send your second half predictions to email@example.com
Good move from Chelsea inside Leverkusen's area, as Drogba nearly finds Mata at the far post. That man Leno is there again though.
Ballack continues to chip away at the referee and he becomes another Leverkusen player to be booked.
Mata is again through on goal, but he plays in Lampard, who lays it off to Sturridge whose shot again finds the hands of Leno. A strong end to the half by Chelsea.
Boos ring around the ground as Leverkusen fans condemn the yellow card shown to Kadlec and Chelsea nearly take the lead again as Drogba drops the ball over the top for Mata who fires straight at Leno.
Mata's free-kick to the far post is punched away very impressively by Leno, as Terry waiting in the wings to power in a header.
Leverkusen look to step up their attack after that move from Chelsea but Kadlec's ball up to Kiessling is cleared by Ivanovic.
Great chance for Chelsea as Sturridge delightfully plays in Drogba who nips past Leno before firing horribly over the bar. A poor miss, but at least Chelsea have posed an attacking threat on goal now.
Chelsea can't work anything from the free-kick, and a pass from Meireles goes down after some miscommunication with Bosingwa.
Bosingwa takes on Schlaab and does well to skip past the full-back, with Kiessling furious at the decision as he lets rip on the referee. Naturally, he gets a yellow card.
Leverkusen play patient football as Chelsea's midfield is forced to drop deep to try and regain possession.
One gets the feeling that Leverkusen may have this game for the taking as Chelsea look to burst the ball forward again but Ivanovic again only finds Friedrich.
Castro's corner lands on the head of Ballack and his looping header hits the bar. Ivanovic clears the deflection as Chelsea get let off.
Leverkusen again bring the forward through midfield, but Schwaab's cross is brilliantly tackled away by Terry as Leverkusen win a corner through Castro.
Toprak trips Sturridge, and it's another free-kick to Chelsea 30 yards out, which Drogba looks like he wants to take.
Leverkusen win a corner, but Castro's delivery is headed out to Sam as the hosts again charge at the Chelsea defence.
Ivanovic searches out Drogba but it lands behind the striker and Leverkusen clear. Still waiting for a spark to kick the game into life at the moment.
Ballack's chip into the box takes a deflection off Luiz to safety, as Kiessling again lurked behind the Chelsea defender.
A second free-kick in two minutes as Simon Rolfes slides into Ramires, taking the ball but also the man. Chelsea free-kick 30 yards out.
Ramires moves the ball around Chelsea's midfield but Leverkusen hold a high line and restrict any space for the strikers to run into.
Raul Mereiles and Mata link up, but a loose pass from the former forces Ramires into fouling Ballack.
Castro's ball into the box is teasing from the right but no-one is to be found from Leverkusen and it rolls out of play.
Luiz is back on, to Chelsea's advantage, and a ball to Juan Mata nearly finds the striker in space after good vision from Sturridge. The ball is just too long though.
Chelsea are playing a man light as Ballack drifts past Lampard but is met by Ivanovic who charges down his cross in.
Luiz is still down, clutching his ribs and sadly the stretcher has been taken on to the field and the Portuguese man's night could be over.
Luiz is caught by Kiessling, and the defender stays down after a brave challenge to stop the striker breaking through on goal.
Leverkusen retain possession to good effect and Castro's ball into the box nearly finds Kiessling in space but Luiz stretches to make a crucial header clear.
Sturridge nips past Kadlec and Omer Toprak, but his ball into Drogba is intercepted by Daniel Schwaab. Sturridge looks very lively early on.
Daniel Sturridge gets to the by-lines and crosses into the six-yard box to force a fantastic claim by Bernd Leno. Great hands from the Leverkusen keeper.
Kiessling nearly races onside to meet Castro's through ball but it carries too much weight. Chelsea are let off after some loose defending.
Chelsea spread the ball around the park nicely but Sam puts pressure on Ivanovic and the ball is forced back to Petr Cech.
Kiessling is tripped by Terry but it appears that a foul has been given against the striker for simulation. Free-kick to Chelsea as a result.
Gonzalo Castro cuts past Terry in the penalty area, before lining up a shot which is blocked by David Luiz. Still all Bayer in these early stages.
It's all rather tight in midfield and Ballack is forced to play it back into Bayer's defence as the hosts retain possession.
Ivanovic steals the ball from Sam, but Lampard gives it away in return and Ramires is forced to track back well to deny Sam a run down the left.
Jose Bosingwa gets his first taste of action at left back and ends up clearing to Michael Ballack, whose ball back in is headed away by Terry.
Frank Lampard picks it up and plays in a sly through ball for Dider Drogba who sneaks in behind Manuel Friedrich. His shot is scuffed though and ends up going wide.
Kadlec and Sam link up again and it's Sam who whips a ball in from the left but Branislav Ivanovic is in a good position to head away.
Kiessling and Terry collide during a jump for a header and a foul is given against the Chelsea man despite it looking like a fair attempt to win the ball.
Sidney Sam finds Michal Kadlec on the left but his ball into the box is wild and travels out for a throw-in to Chelsea.
Some intricate link-up between Stefan Kiessling and Lars Bender nearly creates an opportunity for the former to break past John Terry, The Chelsea captain clears it up though.
Unbeaten in Group E, Chelsea are favourites at 5/4 with Sky Bet. Bayer Leverkusen are 11/5 to continue Chelsea's recent woeful form, while the draw is at 9/4.
Ashley Cole is a surprise absentee for Chelsea. The England defender, who has been an ever-present for the Blues in the Barclays Premier League and Europe this season, is replaced by Jose Bosingwa, who is recalled as a makeshift left-back for the Group E encounter. Striker Fernando Torres is left on the bench for a third successive game, with Raul Meireles coming in for John Obi Mikel in midfield, while Leverkusen recall captain Simon Rolfes and Daniel Schwaab.
Bayer Leverkusen: Leno, Schwaab, Friedrich, Toprak, Kadlec, Bender, Rolfes, Castro, Ballack, Sam, Kiessling. Subs: Giefer, Reinartz, Oczipka, Schurrle, Ortega, Derdiyok, Jorgensen.
Chelsea: Cech, Ivanovic, Luiz, Terry, Bosingwa, Lampard, Meireles, Ramires, Sturridge, Drogba, Mata. Subs: Turnbull, Torres, Mikel, Malouda, McEachran, Kalou, Alex.
Welcome to live commentary of Bayer Leverkusen v Chelsea from the Champions League Group E. The team news is in, send your e-mails with detailed first half predictions to firstname.lastname@example.org