The report stresses that Arsenal and Gyokeres’ camp presented a deal that guaranteed Sporting a fixed sum of €70million (£60.8m) plus €10m (£6.95m) in add-ons. However, the dialogue between the three parties hit a roadblock on Monday and negotiations are ‘at risk of collapsing completely’.

Sporting CP president Frederico Varandas has emphatically revealed that his wantaway striker Viktor Gyökeres will be served with a “heavy fine” and forced to apologise to his teammates after missing the start of pre-season training in an attempt to accelerate his exit this summer.