Nice defender Youcef Atal is interesting Chelsea.
Calciomercato says he is no stranger to the Blues' shortlist having been linked for some time as a post-ban option.
Chelsea will face competition from Valencia for Atal's signature.
The full-back played 29 times as Nice reached seventh in last season's Ligue 1.
But first, the Blues will have to convince the Court of Arbitration for Sport that they have served their time for flouting FIFA rules on signing young players.
An appeal to the two-window punishment is still due to be heard and Chelsea hope to have the period halved.
