The Arsenal's skipper Koscielny have faith and trust in his team's ability to outsmart Bayern in their own den.
Arsenal is going through a bit of ups and downs in EPL as they have lost two matches back to back against Watford and Chelsea before the victory that they earned against Hull City by 2-0.
Arsenal leader Laurent Koscielny believes that this win will help them to boost up their confidence going in to the big clash against the Bavarians as he knows how tough it is going to be to overthrow the German giants in their own soil.
But on the other hand he also knows that what his team is made of as they know how to overcome defeats which will actually help them to earn a positive result against Bayern who certainly has an edge over Arsenal at the Moment as the history is favoring Bayern.
Since the Gunners has lost twice against Bayern in the Champions league in 2013 and 2014.
He voiced: "During the season you know we will have some good and bad moments. During the bad moments you see whether you have a good squad or not,"
"I think we have responded well after the two defeats against Watford and Chelsea.
"We know we are capable of winning here. We did it in the past. We did it last year [at home] during the group stage so we know we can do it here.
"We know the first game here is very important because we have the second game at home.
"It will be important at home if we have a good result tomorrow."