Ventura criticised Ligue 1 and said 24-year-old Verratti was not being tested enough after questions were raised over his form and fitness.
Paris Saint-Germain will be without Angel Di Maria, Layvin Kurzawa and Javier Pastore for the Ligue 1 clash with Lyon on Sunday.
Paris Saint-Germain captain Thiago Silva has not been in contact with Juventus, according to his agent.
Italy coach Giampiero Ventura has criticised the standard of Ligue 1, insisting that PSG midfielder Marco Verratti is not being tested enough.
Rennes are up to fourth in Ligue 1 after continuing their fine home form with a 1-0 win against Toulouse.