Viktor Gyokeres is set to leave Sporting but his exit is becoming more and more bitter with the striker having now sent a legal letter to the club.

Mikel Arteta says Arsenal need to continue adding to their squad this summer, as he dropped a hint over the club’s move for Sporting striker Viktor Gyokeres. Arsenal remain in talks with Sporting over a deal for Gyokeres, who is currently on holiday after refusing to return to pre-season training.