The proposed relocation from Viktor Gyokeres to Arsenal could fall, according to reports from Portuguese media.
Mailsport understands, however, that Sporting hoped to raise the price of the player, but Gyokees has still set his sights to become a member of the Gunners.
According to the Portuguese Outlet record, there is a disagreement with regard to bonuses offered to the player.
Sport is said to demand € 10 million, of which Arsenal is said to be reluctant to include on top of a transfer costs of £ 60 million.
The report also claims that although all scenarios are still open, there is a serious risk that the negotiations collapse completely '.