Full-time: Arsenal 2-0 Brighton
- Arsenal move up to fifth in the Premier League table and level on points with Chelsea after maintaining their perfect home record in 2017-18 with a routine win over Brighton
- Nacho Monreal scores his first top-flight goal since 2013 after Alexandre Lacazette hits the post inside two minutes
- The returning Alex Iwobi notches a second goal after a wonderful backheel from Alex Sanchez
- Solly March rattles the woodwork for the visitors, who sit 14th and remain without an away win this season
- The two teams went head-to-head in a league match for the first time since February 1983 on the 21st anniversary of Arsene Wenger's appointment as Arsenal manager
- The Gunners are now unbeaten in their last 32 matches against newly-promoted sides - a run that stretches back to 2012
That is all for this particular blog, thanks for following along and stay with IBTimes UK as we bring you live coverage of today's late kick-off between Newcastle and Liverpool at St James' Park.
Goodbye for now.
It's a fourth defeat in seven Premier League games for Brighton, who remain winless on the road and 14th in the table, two points clear of the relegation zone.
However, they played well in patches and obviously aren't completely out of their depth at this level. Everton visit the Amex in two weeks time.
So Arsenal remain perfect at home after celebrating Arsene Wenger's 21st anniversary as manager with a sixth win in seven matches across all competitions.
They really seem to have turned a corner after that embarrassing performance at Liverpool and now draw level on points with fourth-place Chelsea in fifth, one adrift of north London rivals Tottenham Hotspur and four behind the Manchester clubs.
They visit Watford after the international break.
Arsenal 2-0 Brighton
Chances at either end as Propper curls a shot narrowly wide and Dunk does just enough to force Giroud into heading over the crossbar after Sanchez drives an effort into the turf.
Three minutes of added time are signalled by the fourth official. Brighton finishing strong but will go home empty-handed.
After appearing to be in damage limitation mode for much of this second half, Brighton are turning up the heat in the closing stages.
They win a succession of throw-ins and Mustafi makes a crucial intervention to take the ball off Murray's head.
Murray comes within a whisker of reducing the deficit for Brighton with just minutes of this contest remaining.
The substitute gets across both Monreal and Mustafi before heading Gross' left-wing cross agonisingly wide.
Elneny, who impressed against West Brom and started in Belarus, comes on for Arsenal.
Xhaka is the man to make way.
Poor decision making from Walcott, who passes straight to Bong after good interplay between Ramsey and Giroud.
Hughton makes a double change of his own, with Knockaert and Murray replacing Izquierdo and Brown.
Xhaka's deep ball to the back post is too high for Kolasinac to make contact.
Arsenal win a free-kick when Sanchez's latest mazy run is unceremoniously ended by the comparatively hulking figure of Dunk.
The Chilean tries to get his effort up and down but clears the crossbar by some distance.
Lacazette will not score in a fourth successive home match for Arsenal as he is replaced by Giroud. Iwobi makes way for Walcott.
Hughton withdraws March and sends on Italian winger Ezequiel Schelotto.
A great last-ditch tackle from Dunk, who is making his 200th appearance for Brighton this afternoon, prevents Lacazette from adding a third Arsenal goal.
Walcott and Giroud are preparing to come on for Arsenal. The latter scored his 100th goal for the Gunners against BATE Borisov on Thursday night.
Arsenal look rampant now as a last-gap touch from Dunk deflects Sanchez's goal-bound low shot wide after an initial save from Ryan.
Kolasinac's header from a Xhaka corner is then cleared off the line by March.
Brighton clear another dangerous Sanchez cross and Ramsey kills Arsenal's latest attack with a curious pass towards Iwobi.
Ramsey also looks to find Kolasinac, but the offside flag is raised as Ryan gathers.
A hammer blow for Brighton as Arsenal double their lead in the 56th minute.
A delightful passing move involving Ramsey and Lacazette ends with Sanchez releasing Iwobi with a wonderful backheel. The Nigerian midfielder, whose finishing is often subject to criticism, makes no mistake on this occasion as he thrashes the ball past Ryan.
A long way back for the visitors now.
Goal: Arsenal 2-0 Brighton (Alex Iwobi)
Sanchez's inviting chipped cross towards Ramsey is headed back to Ryan in the nick of time by Duffy.
Further up the pitch, Dunk stops a pass from reaching Lacazette and barrels forward before testing Cech with a shot from distance.
Iwobi strays offside and Sanchez's low pass down the right channel drifts harmlessly out of play.
Brighton captain Bruno, who celebrates his 37th birthday today, concedes a corner. Sanchez's floated ball to Ramsey on the edge of the box is blasted over by the Welsh midfielder.
Sanchez lofts the ball out of play and Cech intervenes to stop Izquierdo from collecting Gross' through pass.
Duffy then produces a fine block to deny Lacazette.
The second half is off and running. No changes from either manager just yet.
A rare strike from Monreal separates the two sides at the break. Arsenal have largely dominated the game, but Brighton initially responded well to that setback and struck the woodwork with a vicious effort from March.
They are not out of this yet by any means, although need to take better care of the ball.