Roma have launched a swap bid for Lyon midfielder Houssem Aouar.
The France international has long been linked with a move away from OL.
Aouar could be sold this summer and Roma have made contact about a cash-plus-player swap for the midfielder.
Leggo says Aouar is rated at around €25m by OL.
Roma sporting director Tiago Pinto has tabled an exchange deal for Aouar, offering one of Amadou Diawara or Ebrima Darboe plus an unspecified amount of cash.