The result is certain to pile more pressure on Gunners manager Arsene Wenger, who was the subject of angry chants from visiting fans demanding his departure.
As soon as Brighton bagged their second goal, the German global cut an extremely frustrated figure, as evident from his actions and body language.
The Germany global was pictured throwing his gloves to the ground yesterday as the Gunners slipped to a 2-1 defeat at Brighton. "We started so well, we might have even got more goals".
With 26 minutes gone, they gifted the home side their second goal. Swiss midfielder Granit Xhaka ran inside the box during an Arsenal possession and gained control. The team fought back but the damage was done.
Arsene Wenger's Arsenal lost once again in the Premier League at the weekend; this time to mid-table side Brighton and Hove Albion. "Our intent in the first half was good, but I was very disappointed to concede when we did", Brighton manager Chris Hughton said after the match, according to the team website.
The 35-year-old custodian had a sub-par display 1-3 loss to Swansea earlier in the season and he posted a similar apology on social media but it didn't go down well with the majority of the Gunners faithful who felt the experienced shot-stopper was over the hill and similar sentiments were echoed on Sunday night as well.
The defeat was Arsenal's fourth in a row in all competitions, and the Gunners now must travel to the San Siro to face AC Milan in the Europa League Round of 16 on Thursday.