Arsenal boss Arsene Wenger is wary of the quality of Champions League opponents Olympique Marseille.
Wenger hopes his depleted squad can secure an opening-day win in what is sure to be an intimidating - if half finished - Stade Velodrome.
"There is a passionate home crowd here in this city and then the team of Marseille have a compact game," he said.
"They are very good defensively, they are very strong physically and have this experience of playing big games in their stadium.
"And then you cannot forget about their offensive players like Mathieu Valbuena, Andre-Pierre Gignac etc.
"People say that Dortmund and Napoli are our first opponents but I think that Marseille have their chances.
"A couple of year ago there was a similar group, it was Marseille and Arsenal who qualified. Nothing is played yet. They have an opportunity to qualify."
