Ajax striker Antony is upset with the price the Dutch giants are demanding to sell him this summer.
Antony is a target for Manchester United, where former Ajax coach Erik ten Hag has taken charge.
However, De Telegraaf says Ajax are demanding €80m to sell the Brazil international, which United regard as too steep.
Antony, who's agents has requested Ajax listen to offers, is upset by the valuation, deeming it "disproportionate".
And it's suggested the young attacker could refuse to take part in preseason training in protest against Ajax's asking price.
Need a VPN? Or seeking to switch? Then support Tribal Football by clicking here to sign up with our official partners NordVPN. Not only will you receive the best VPN experience, but also great discounts by signing up via Tribal Football. Thanks for your support!