The News of the World reports that Lyon are accusing United of using Fabien Barthez to tap up the player.
Technical director Bernard Lacombe is quoted saying: "We will be looking into this and taking further action. There has been nothing done through the official channels."
Last month when Govou was being linked to Juventus he had this to say:
"At this moment I am ready to move to a bigger stage. "The Bianconeri are super. Thuram and Trezeuget play there, and Turin is near home."