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’.

For the latest news and breaking news visit: Football - Football Transfer News, Scores and Results | Express.co.uk. Stay up to date with all the big headlines, pictures, analysis, opinion and video on the stories that matter to you.

Arsenal are closing in on a £63.5m deal with Sporting Lisbon for primary target Viktor Gyokeres, but former Gunners star William Gallas has warned the striker he will have to make "two or three steps