It's finished - Pizarro's goal giving Chelsea a hard-fought win but Birmingham will feel hard done by and deserved at least a point from this game.
90
Another Belletti corner is cleared by Franck Queudrue - time almost up now
88
Injury time beckoning and Chelsea appear to have just done enough
85
Substitution
Steve Sidwell is on for Joe Cole
85
Five minutes left and Chelsea are closing in on a hard-fought three points here
84
Anelka strikes at goal again but Maik Taylor saves well
83
Blues have responded well to the goal and claim two quick corners - but Chelsea survive
81
That header from Pizarro may have won it for Chelsea but it's harsh on Birmingham
79
Goal
Pizarro puts Chelsea in front from close range after Birmingham fail to deal with a corner
77
Yellow Card
Pizarro is booked - only the second yellow of the game
74
McFadden almost makes the dream start to his Blues career when, from a quick corner, he forces Cech into a good save with his feet
72
Substitution
In a double change, O'Connor is replaced by Mikael Forssell
72
Substitution
Jerome is replaced by McFadden for his City debut
71
All to play for still in the final 20 minutes, Birmingham have been the better side overall but the visitors have improved in recent minutes
69
Better from Chelsea finally as Joe Cole's corner is cleared
67
A lovely one-two between Anelka and Malouda ends with Anelka's effort being blocked but that was Chelsea's best chance so far
64
Half a chance for Anelka but Birmingham defend well again and clear
61
McLeish's side are on top but need a goal as Chelsea continue to look very lacklustre
58
Kapo's pull back is aimed for Larsson but Cech just diverts it away from his path and the ball hits Larsson and goes wide but a great chance for Blues
56
Still defences on top at St Andrews but the game should open up in the last half an hour
54
Anelka has been kept fairly quiet so far but he manages to get a shot in - but it's wide
50
Alex McLeish will be pleased with the way his side have began the second period - Chelsea, however, will be looking to improve
48
Malouda fouls Ridgewell as Kapo fires another shot well over the bar for the home side
Second half
The second 45 get underway in a dull and wet West Midlands
Half time
The home side have had the better chances but it's half-time and still goalless at St Andrews
42
Muamba then blasts over the bar - Birmingham may rue these missed chances
42
Jerome's effort from a corner is cleared off the line by Alex this time - another great chance for the home side
40
That was a let-off for Chelsea and the closest either team has come to a goal in the first half so far
38
Cech mis-kicks from a backpass and Cameron Jerome almost puts Birmingham in front but the ball strikes the post
36
Chelsea attempt to force the issue again as Alex heads wide from close-range
35
The home fans have been noisy so far and will be pleased to take Chelsea into half time level - 10 minutes or so to the break
32
Damien Johnson's strike is blocked but the home side are playing on the break still
30
Substitution
Wright-Phillips failed to shake off that early knock and is forced off - Pizarro comes on in his place
30
The visitors have shaded it so far without creating many chances
28
Carvalho gets in the way of an Olivier Kapo shot from the right at Birmingham manage to ease the pressure with a rare attack
25
Chelsea are looking the more dangerous going forward but the home side are defending well
22
Ballack's well-delivered free kick is cleared by Liam Ridgewell as Chelsea turn up the heat
19
Anelka gets his first chance of the game but his shot is blocked - the game has livened up now
17
Sebastian Larsson's cross is met by the head of Olivier Kapo, but it's fairly comfortable for Petr Cech
16
Birmingham win a corner and O'Connor rises but his header is over
14
After an initial nervous start, City are having more possession now
13
Ballack fires a free-kick from distance straight into the arms of Maik Taylor
12
Still no real chances to report in what has been a tentative start at St Andrews
11
Yellow Card
Muamba is booked for unsporting behaviour
9
Fabrice Muamba brings down Michael Ballack for a Chelsea free-kick
7
Birmingham advance and Garry O'Connor tries his luck but his effort is blocked by Ricardo Carvalho
6
Shaun Wright-Phillips has picked up a knock and needs treatment
5
No early chances but Birmingham are looking a little nervous at the moment
3
The away side have done most of the early attacking at St Andrews
2
Chelsea win an early corner but it comes to nothing in the end
Kickoff
The game begins with the home side's fans looking for another impressive display against one of the 'top four'
Awaiting Kickoff
Chelsea new-boy Nicolas Anelka makes his first start in place of Claudio Pizarro, while Birmingham are unchanged from the side that drew against Arsenal but do have new signing James McFadden on the bench.
Birmingham City
Chelsea
Full time
It's finished - Pizarro's goal giving Chelsea a hard-fought win but Birmingham will feel hard done by and deserved at least a point from this game.
Another Belletti corner is cleared by Franck Queudrue - time almost up now
Injury time beckoning and Chelsea appear to have just done enough
Substitution
Steve Sidwell is on for Joe Cole
Five minutes left and Chelsea are closing in on a hard-fought three points here
Anelka strikes at goal again but Maik Taylor saves well
Blues have responded well to the goal and claim two quick corners - but Chelsea survive
That header from Pizarro may have won it for Chelsea but it's harsh on Birmingham
Goal
Pizarro puts Chelsea in front from close range after Birmingham fail to deal with a corner
Yellow Card
Pizarro is booked - only the second yellow of the game
McFadden almost makes the dream start to his Blues career when, from a quick corner, he forces Cech into a good save with his feet
Substitution
In a double change, O'Connor is replaced by Mikael Forssell
Substitution
Jerome is replaced by McFadden for his City debut
All to play for still in the final 20 minutes, Birmingham have been the better side overall but the visitors have improved in recent minutes
Better from Chelsea finally as Joe Cole's corner is cleared
A lovely one-two between Anelka and Malouda ends with Anelka's effort being blocked but that was Chelsea's best chance so far
Half a chance for Anelka but Birmingham defend well again and clear
McLeish's side are on top but need a goal as Chelsea continue to look very lacklustre
Kapo's pull back is aimed for Larsson but Cech just diverts it away from his path and the ball hits Larsson and goes wide but a great chance for Blues
Still defences on top at St Andrews but the game should open up in the last half an hour
Anelka has been kept fairly quiet so far but he manages to get a shot in - but it's wide
Alex McLeish will be pleased with the way his side have began the second period - Chelsea, however, will be looking to improve
Malouda fouls Ridgewell as Kapo fires another shot well over the bar for the home side
Second half
The second 45 get underway in a dull and wet West Midlands
Half time
The home side have had the better chances but it's half-time and still goalless at St Andrews
Muamba then blasts over the bar - Birmingham may rue these missed chances
Jerome's effort from a corner is cleared off the line by Alex this time - another great chance for the home side
That was a let-off for Chelsea and the closest either team has come to a goal in the first half so far
Cech mis-kicks from a backpass and Cameron Jerome almost puts Birmingham in front but the ball strikes the post
Chelsea attempt to force the issue again as Alex heads wide from close-range
The home fans have been noisy so far and will be pleased to take Chelsea into half time level - 10 minutes or so to the break
Damien Johnson's strike is blocked but the home side are playing on the break still
Substitution
Wright-Phillips failed to shake off that early knock and is forced off - Pizarro comes on in his place
The visitors have shaded it so far without creating many chances
Carvalho gets in the way of an Olivier Kapo shot from the right at Birmingham manage to ease the pressure with a rare attack
Chelsea are looking the more dangerous going forward but the home side are defending well
Ballack's well-delivered free kick is cleared by Liam Ridgewell as Chelsea turn up the heat
Anelka gets his first chance of the game but his shot is blocked - the game has livened up now
Sebastian Larsson's cross is met by the head of Olivier Kapo, but it's fairly comfortable for Petr Cech
Birmingham win a corner and O'Connor rises but his header is over
After an initial nervous start, City are having more possession now
Ballack fires a free-kick from distance straight into the arms of Maik Taylor
Still no real chances to report in what has been a tentative start at St Andrews
Yellow Card
Muamba is booked for unsporting behaviour
Fabrice Muamba brings down Michael Ballack for a Chelsea free-kick
Birmingham advance and Garry O'Connor tries his luck but his effort is blocked by Ricardo Carvalho
Shaun Wright-Phillips has picked up a knock and needs treatment
No early chances but Birmingham are looking a little nervous at the moment
The away side have done most of the early attacking at St Andrews
Chelsea win an early corner but it comes to nothing in the end
Kickoff
The game begins with the home side's fans looking for another impressive display against one of the 'top four'
Awaiting Kickoff
Chelsea new-boy Nicolas Anelka makes his first start in place of Claudio Pizarro, while Birmingham are unchanged from the side that drew against Arsenal but do have new signing James McFadden on the bench.