- Nacho Monreal scored his first league goal since march 2013 to open the scoring
- Super Eagles star Alex Iwobi scored the second, both teams hit the post in the first half
- Arsene Wenger's men now move up to fifth place on the log after seven games
Arsene Wenger men secured a much needed match day seven win when they welcomed newly promoted Brighton and Hove to the Emirates for their Premier League clash on Sunday.
Arsenal were buoyed by their Europa League win in mid-week over Belarus giants BATE Borisov.
The Gunners started the game brightly as Alexandre Lacazette hit the post in the third minute with a ferocious volley.
In the ninth minute Alexis Sanchez hit a long range shot which Matt Ryan did well to hold onto in goal.
Nacho Monreal hit home with a rebound volley in the 16th minute after attempts from Rob Holding, Kolasicac and Aaron Ramsey were all blocked.
It was the Spaniard's first Premier League goal since March 2013.
Brighton thought they had scored when March's long range free-kick hit the post. Shane Duffy's rebound however could not be directed on target.
Alex Iwobi doubled the lead in the second half with a thumping shot after Alexis Sanchez found him with a wonderful back heel.
The Gunners move to fifth place on the log with 13 points from seven games.
Watch related video: