The clubs are at odds over the bonus payments, with Sporting CP pushing for an additional €10m. Although communication lines remain open, there is a risk that the transfer could fall through over this issue.
Some people suggest that Sporting CP's president, Frederico Varandas, is deliberately prolonging the negotiations to see if other clubs will make higher offers. However, Arsenal is urging Varandas to accept their offer this week so that Gyokeres can join the team before their preseason tour of Asia starts.
