Arsenal now face the daunting task of taking on a rejuvenated Milan side at San Siro as they look to continue their run in the Europa League.
The majority of Arsenal's travelling support were calling for Wenger's head as they went two goals down but Koscielny wants all parties to be united in an attempt to turn such poor form around. I know its hard at the moment in this hard period we are going through as a team but we need you. "But, at the moment we have different worries in how to come back to winning a game".
Arsenal fans today chanted for Wenger to be sacked after the club failing to sail past a determined Brighton in a match officiated by Stuart Attwell as the centre referee.
Eighty-eight per cent of Arsenal Supporters Trust (AST) members who responded to a survey say they do not support Arsene Wenger remaining in charge of the club beyond the end of the season. "It's simply not possible".
If ever Wenger needed his side to make a solid, composed start to the game, this was it.
The striker was on the scoresheet yesterday as Arsenal were beaten by Brighton.
It was, however, to take just seven minutes for their frailties to be exposed by Brighton.
Ryan, Schelotto, Dunk, Duffy, Bong, Propper, Stephens, Knockaert, Gross, Izquierdo, Murray.
Arsenal great Thierry Henry has said he would not "back down from a challenge" if a vacancy arose to succeed Arsene Wenger as manager of the Gunners.
Koscielny, who had an bad game and looked as though he'd lost his spirit, nearly cost Arsenal another goal heading into the early stages of the second half.
Arsenal conceded twice in the first 26 minutes at Brighton, both following errors by goalkeeper Petr Cech. Koscielny admitted that Arsenal will need time before their confidence fully returns.
A trip to the Amex Stadium presented Arsenal with an opportunity to offer a positive response to those quick to criticise them on the back of successive defeats to Manchester City.
The Gunners, though, stood firm and with Mesut Ozil becoming more prominent, stepped up their efforts to find an equaliser.