Ajax goalkeeper Jasper Cillessen is reportedly in Manchester United's transfer list, as Louis van Gaal looks to replace David de Gea - should the Spaniard move to Real Madrid this summer.
However, the Dutch club are ready to stop the move from happening, according to the Mirror.
"The Ajax management are going to make it really difficult when the interest becomes concrete," the 26-year-old is quoted saying by The Mirror.
"If I had planned to leave, I would not have signed a new contract until 2018. My old contract was expiring in the summer of 2016 and in that case this summer would have been the perfect moment to leave.
"Frank de Boer has been very clear when he received questions about my transfer - he wants to block it."