Leproux told a news conference the club would suspend the sale and renewal of season tickets for the 2010/11 season.
Tickets will be named and seats in the Boulogne and Auteuil stands, strongholds of hardline supporter groups, will be allocated at random.
"With two deaths in three years, we have reached a point of no return between the two stands and the situation is getting worse and worse," Leproux said.
"It's our duty to react. This plan is vital for the survival of the club."
The violence between the Boulogne and Auteuil groups of supporters reached its climax on February 28 when a 38-year-old member of the Boulogne Kop was beaten up by Tribune d'Auteuil supporters and died in hospital a few days later.
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