Slovakian goalkeeper Dominik Greif, 29, is listed as one of the five players not for sale at Olympique Lyonnais. Olympique Lyonnais has to find 20 million euros by June 30. All players are for sale except Dominik Greif, Moussa Niakhaté, Tyler Morton, Corentin Tolisso, and one of the two left wingers, Malick Fofana or Afonso Moreira. Greif has 5 caps for Slovakia and a market value of €8.00m, according to Transfermarkt.