Premier League clubs including Arsenal and Newcastle have been put on alert after Marseille admitted they might not be able to afford to keep hotshot striker Andre-Pierre Gignac. The France forward has 10 goals in 11 games for Marcelo Bielsa’s side and is Ligue 1’s top scorer, but his contract expires at the end of the season. Gignac's recent form, coupled with French tax reforms, could make it impossible for l'OM to keep hold of the striker. Quizzed over the club’s inability to meet Gignac’s demands, Marseille president Vincent Labrune conceded: “It’s going to happen because employer contributions and taxes have gone through the roof in France.” “We would like to keep him, but it seems to me utopian to think that he will lower his salary to stay with us.” But Labrune remained hopeful that Gignac’s affection for Marseille might convince him to extend his deal.