A crucial breakthrough came as agents involved agreed to reduce their commission from Sporting from 10 per cent. Romano reports that Arsenal will pay the player’s agent some of that commission instead of Sporting, which will make the final deal for Gyokeres a little higher than the transfer fee suggests.

Arsenal's pursuit of Viktor Gyokeres is at risk of 'imminent collapse' with little sign of a positive resolution, according to reports in Portugal. Talks at club level have been ongoing for a number of weeks but a full agreement is yet to be struck.