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’.

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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.