It is too late as the referee blows for full time - Boro claim a deserved win thanks to Downing's early penalty and Tuncay's strike, Arsenal were poor throughout.
90
Goal
Rosicky scores for Arsenal but surely it's too late
90
Substitution
Adam Johnson replaces Tuncay late on
90
Four minutes of stoppage time to play and Boro are close to claiming a memorable win
89
Adebayor wastes a great chance after his control lets him down
87
Arsenal appear to have given up and Boro are content to settle for 2-0
84
It looks all over, Arsenal have been poor and don't seem to have anything left to give with just over five minutes left
81
Substitution
Aliadiere, who won the penalty, is replaced by Julio Arca
80
Arsenal finally create a meaningful chance as Bendtner's header is touched over by Turnbull
78
Sagna heads behind with Downing about to add a third goal at the back post - all Boro still
76
No more than Boro deserve and it now looks like Arsenal, mirroring Liverpool yesterday, are going to lose their unbeaten league record today
74
Goal
It's 2-0! Tuncay slides home the second after Arsenal fail to clear a Boro attack
71
Walcott's cross is well gathered by Turnbull
70
A strangely off-colour Arsenal continue to huff and puff without creating much in the final third
67
Sagna's cross is cleared by Jonathan Woodgate
65
Aliadiere is offside as Boro look to break again
63
Gareth Southgate will be so pleased with how his side have done so far this afternoon but Boro must guard against the expected late Arsenal onslaught
60
Substitution
It's a double change by Arsene Wenger as Lassana Diarra is replaced by Denilson
60
Substitution
Theo Walcott is on for Arsenal. Eboue goes off
59
O'Neil's dummy gives Boateng a chance of a strike on goal but it's just wide - Middlesbrough still on top
58
Yellow Card
Rochemback is shown a yellow card now, the bookings are mounting up here
56
Boro are still working so hard this afternoon and Arsenal look surprisingly short of inspiration
55
David Wheater tries his luck from distance - but it's well blocked by Toure
53
Yellow Card
Clichy goes into the book now for a foul on O'Neil
51
Boro's Rochemback fires a free-kick straight into the Gunners' wall
48
Yellow Card
Toure is booked for blocking off Aliadiere
47
Tuncay, with only the keeper to beat, drags his shot just wide, great chance for 2-0
45
Substitution
Nicklas Bendtner is on for Arsenal in place of Eduardo
Second half
The second half gets underway
Half time
Half-time and Boro deservedly lead thanks to Downing's fourth-minute spot-kick
45
Two minutes of stoppage time at the end of the first half
45
Eboue's free-kick is poor down the other end
44
From a Boro corner a bit of a scramble ends with Almunia gathering the ball on the line, how Boro would love a second just before the break
41
Tuncay's finish is weak in what was a half-chance for the Boro man
39
Emmanuel Eboue's free kick is met by the head of in-form Emmanuel Adebayor but his effort is just wide - Arsenal's best chance so far
37
Aliadiere has picked up a knock but looks OK to continue after a bit of treatment
36
The Gunners have been a pale shadow of themselves so far in this game but Boro deserve credit
33
Toure's free-kick is blocked
32
Arsenal win a couple of corners in quick succession but Boro defend well and withstand the pressure
30
Yellow Card
O'Neil is in the thick of it again but this time for the wrong reasons as he is booked for upending Rosicky
28
O'Neil has been impressive so far and his header lands on the roof of Almunia's net - Boro continue to pose the greater threat
25
Tomas Rosicky's shot is narrowly wide - but it was never troubling Ross Turnbull
24
Arsenal are yet to test the Boro defence and it's the home side in charge
22
Gary O'Neil's cross is headed well clear by Toure
21
Fabio Rochemback fires an effort way off target after decent build-up play from the home side again
20
Boro are buzzing - and are playing in a similar way to Newcastle on Wednesday here
17
Toure's clearance comes back off Aliadiere and Manuel Almunia eventually gathers the ball - Arsenal survive
15
Boro are worklng very hard at the moment to deny Arsenal space and deserve the early lead
13
Eduardo is annoyed as he feels he should have got a corner there but the referee says no
10
Eboue rolls the ball to Toure for an Arsenal free-kick but his shot is charged down
6
A superb, and unexpected, start for Boro in this game has got the home fans buzzing early on
4
Goal
Stewart Downing slots the ball home and Boro lead early on
3
Toure hauls down ex-Gunner Jeremie Aliadiere inside the area and it's a penalty to Boro
Middlesbrough
Arsenal
Full time
It is too late as the referee blows for full time - Boro claim a deserved win thanks to Downing's early penalty and Tuncay's strike, Arsenal were poor throughout.
Goal
Rosicky scores for Arsenal but surely it's too late
Substitution
Adam Johnson replaces Tuncay late on
Four minutes of stoppage time to play and Boro are close to claiming a memorable win
Adebayor wastes a great chance after his control lets him down
Arsenal appear to have given up and Boro are content to settle for 2-0
It looks all over, Arsenal have been poor and don't seem to have anything left to give with just over five minutes left
Substitution
Aliadiere, who won the penalty, is replaced by Julio Arca
Arsenal finally create a meaningful chance as Bendtner's header is touched over by Turnbull
Sagna heads behind with Downing about to add a third goal at the back post - all Boro still
No more than Boro deserve and it now looks like Arsenal, mirroring Liverpool yesterday, are going to lose their unbeaten league record today
Goal
It's 2-0! Tuncay slides home the second after Arsenal fail to clear a Boro attack
Walcott's cross is well gathered by Turnbull
A strangely off-colour Arsenal continue to huff and puff without creating much in the final third
Sagna's cross is cleared by Jonathan Woodgate
Aliadiere is offside as Boro look to break again
Gareth Southgate will be so pleased with how his side have done so far this afternoon but Boro must guard against the expected late Arsenal onslaught
Substitution
It's a double change by Arsene Wenger as Lassana Diarra is replaced by Denilson
Substitution
Theo Walcott is on for Arsenal. Eboue goes off
O'Neil's dummy gives Boateng a chance of a strike on goal but it's just wide - Middlesbrough still on top
Yellow Card
Rochemback is shown a yellow card now, the bookings are mounting up here
Boro are still working so hard this afternoon and Arsenal look surprisingly short of inspiration
David Wheater tries his luck from distance - but it's well blocked by Toure
Yellow Card
Clichy goes into the book now for a foul on O'Neil
Boro's Rochemback fires a free-kick straight into the Gunners' wall
Yellow Card
Toure is booked for blocking off Aliadiere
Tuncay, with only the keeper to beat, drags his shot just wide, great chance for 2-0
Substitution
Nicklas Bendtner is on for Arsenal in place of Eduardo
Second half
The second half gets underway
Half time
Half-time and Boro deservedly lead thanks to Downing's fourth-minute spot-kick
Two minutes of stoppage time at the end of the first half
Eboue's free-kick is poor down the other end
From a Boro corner a bit of a scramble ends with Almunia gathering the ball on the line, how Boro would love a second just before the break
Tuncay's finish is weak in what was a half-chance for the Boro man
Emmanuel Eboue's free kick is met by the head of in-form Emmanuel Adebayor but his effort is just wide - Arsenal's best chance so far
Aliadiere has picked up a knock but looks OK to continue after a bit of treatment
The Gunners have been a pale shadow of themselves so far in this game but Boro deserve credit
Toure's free-kick is blocked
Arsenal win a couple of corners in quick succession but Boro defend well and withstand the pressure
Yellow Card
O'Neil is in the thick of it again but this time for the wrong reasons as he is booked for upending Rosicky
O'Neil has been impressive so far and his header lands on the roof of Almunia's net - Boro continue to pose the greater threat
Tomas Rosicky's shot is narrowly wide - but it was never troubling Ross Turnbull
Arsenal are yet to test the Boro defence and it's the home side in charge
Gary O'Neil's cross is headed well clear by Toure
Fabio Rochemback fires an effort way off target after decent build-up play from the home side again
Boro are buzzing - and are playing in a similar way to Newcastle on Wednesday here
Toure's clearance comes back off Aliadiere and Manuel Almunia eventually gathers the ball - Arsenal survive
Boro are worklng very hard at the moment to deny Arsenal space and deserve the early lead
Eduardo is annoyed as he feels he should have got a corner there but the referee says no
Eboue rolls the ball to Toure for an Arsenal free-kick but his shot is charged down
A superb, and unexpected, start for Boro in this game has got the home fans buzzing early on
Goal
Stewart Downing slots the ball home and Boro lead early on
Toure hauls down ex-Gunner Jeremie Aliadiere inside the area and it's a penalty to Boro
Kickoff
The action gets underway at the Riverside