Ajax have removed the €26m release clause of in-demand star Hakim Ziyech as they have tied him down to a new contract.
As outlined by a report in De Telegraaf, the Moroccan international will now have a market value in excess of €50m - which could potentially put off suitors.
A report in Diario AS last week claimed Real Madrid were scouting the player - along with his teammates Donny van de Beek and David Neres - during their 3-0 Champions League win at Valencia last week.
It is claimed that under sporting director Monchi, the Andalusian club monitored the player and considered paying €6m in the summer of 2015.
The following year, the Twente player joined Ajax in an €11m deal and he has since appeared in the Europa League final and last season, became a Champions League semi-finalist.
The forward-thinking player was once again being monitored by Monchi – who returned to Sevilla in April - over the summer months, according to a report in De Telegraaf.