Mamadou Niang was delighted with Marseille's performance against FC Zurich but admitted they must play better against Milan next time out.
The Ligue 1 side have given themselves a realistic chance of qualifying for the UEFA Champions League knockout stages after a 6-1 thrashing of Zurich at the Stade Velodrome on Tuesday.
Niang helped himself to a goal in the win which sees Marseille sit third, one point behind group favourites AC Milan and Real Madrid.
However, the French outfit have to travel to the San Siro on match-day five before hosting Real in their final group game.
"We played very well tonight with a bit of luck," he told Skysports.com. "We will have to play better than that against Milan in the San Siro.
"They are a world class team with top players but we will have some chances against them. Hopefully we will defend well and take our chances.
"(Against Zurich) we just played fantastic. It is not always you score six goals against a European team. Let's hope we found the league form and push for more."