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.

Gyokeres has already agreed personal terms on a five-year deal and has been awaiting a club-to-club agreement. He is now expected to join Arsenal in a deal worth €63.5million (£54.86m), with a further €10m (£8.64) in add-ons.

Arsenal are extremely busy in the summer transfer window, having completed a signing while negotiating deals for Chelsea winger Noni Madueke and Sporting Lisbon striker Viktor Gyokeres