Arsenal defender Laurent Koscielny knows winning their preseason Champions League qualifier will be crucial to their season hopes.

Koscielny hopes his team can take confidence into the new campaign, which will see them play a crucial Champions League qualifier in August.

"The second leg of the Champions League against Bayern Munich was a trigger for us," he said. "In the process, we almost won everything.

"The most important thing is that Arsenal is in the Champions League. It is super exciting to play against the best teams in Europe."