Chelsea defender Malang Sarr is interesting Porto.
The Frenchman joined Chelsea earlier this summer on a free transfer from Nice and is expected to be loaned out before the market shuts.
Sarr has been linked with St Etienne and TF1 says Porto are also keen.
The Portuguese giants are in the market for a new centre-half and are eyeing Sarr as a potential addition.
Porto are aware of Sarr's availability and keen to discuss a loan arrangement.