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’.

Arsenal agree to pay around £55m to sign Sporting CP striker Viktor Gyokeres; negotiations continue over add-ons; Sweden international, 27, has been Arsenals primary focus in the transfer window after

Arsenal are working to complete a deal to sign Valencia centre-back Cristhian Mosquera. Personal terms are in place with the 21-year-old and the two clubs are close to reaching an agreement. The Athletic previously reported that the north London side were working on a deal to sign Mosquera with a defensive signing a priority this summer.