The 20-year-old Belgian midfielder has attracted attention from all over Europe, his excellent displays helping his team to the Ligue 1 title in 2010-11, and Michel Seydoux admits he will be sold if his valuation is met.
“The price is €50m and this is clear in advance,” the Lille president told the press.
“We are at a time when the club is having a real discussion about what to do but it will depend on many factors.
“First, our economic potential, and then it depends on the proposals we receive.
“Nobody is unsellable. We would be able to look for solutions in the market with the money we'd receive.”
The price tag could prevent some suitors from pursuing the Belgium international, although Liverpool may have an extra bargaining chip in that Lille are known to be keen on signing on-loan midfielder Joe Cole to a permanent deal.
Real Madrid and Inter are also believed to be among the clubs monitoring Hazard.
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