Gyokeres is no longer comfortable playing for Sporting. He wants the club to sell him to the Premier League, no matter how much the other club gives in offers because Gyokeres wants to develop his career in a competitive league. Primeira League is not competitive enough, and it will affect his career in the future. I believe this will be a significant issue if the management still holds him at a high price (70 million euros) because his age is not compatible with the current market. There will be a win-win solution between him, the sporting and other clubs (who want his service), like a loan option, or player swap.
The management of Sporting CP is not honoring the agreements that he had with them, and that is something that he, as a player, is not happy about. The fact that he is unhappy with the club makes his move away from the club more imminent because, from what I heard, he has refused to train with them. I think in the coming days we will hear positive news about him moving to Arsenal because so far we are the club that he has been linked most with to join.
If he joins Arsenal, he would score for fun.