Chelsea goalkeeper coach Christophe Lollichon admits he's watching the progress of Reims keeper Edouard Mendy.
Mendy has been linked with a return to Olympique Marseille.
However, Lollichon told Le Phoceen: "He has reached maturity, with a fairly unusual path, and it is all the more meritorious.
"Edouard Mendy is today, for me, the best goalkeeper of the championship of France. He is what I call a proactive, very influential goalkeeper who does not suffer the game.
"Reims really did a great job with him. Maybe at OM they could not detect the talent he had in him, but it was perhaps not the right time too. In any case, he's a great goalkeeper that we necessarily follow in the Premier League.
"When you are nearly 2 metres (1m97), with such a ground game, such placement and initiative taking as he has, if recruiters do not look at him, it's because they have to change jobs (laughs). Besides, I know he's a very good guy."