Lens boss Franck Haise admits they're underdogs facing Champions League opponents Arsenal.
Lens haven't been in Europe's top competition for 30 years.
We will have to play this match with our character and the desire to impose certain things on the game," Haise told reporters.
Possession is not what we have to win the match on. I hope to have some time in control but the fight is not about possession of the ball.
We are in this competition, and we deserve to be here.
Yes, we are a small outsider, and obviously we are not going to compare ourselves to Arsenal, but we must play these matches with a lot of character, like in Seville, on our principles, our commitment, our desire to impose certain things."