Le Havre fullback Benjamin Mendy is aware Sunderland are in talks for him.
Mendy is captain of the France under-19 side and is currently preparing for the European Under-19 Championships in Lithuania next month.
However, asked about the Wearsiders' interest, he said: "There is nothing yet.
"Surely there is an agreement between Sunderland and Le Havre, but between Sunderland and me there is nothing signed."