None will be interesting to sign him for 85 million. Unless Gyokeres's club willing to decrease his release clause. It went from 60m to the 85m, and that's damn crazy!
Not even Arsenal or MU are keen in gambling 85 million for him. He has to find a solution for himself.
In fact, i see no official bid came for him until this time. The worst thing is that he will miss the chances to leave, then keep play for Sporting next season

Sporting should better let him leave since he's already made his decision to depart the club else they'll suffer the consequences when a new season starts, the earlier they come to an agreement concerning that the better for both parties cause they'll have more time to look for a suitable replacement and Gyokeres would find happiness in his new environment rather than staying back in a team he's lost interest in, which might affect his performance. As for his clause, Sporting is joking if they think they'll get 85 million for Gyokeres, 60 million is more realistic cause I don't think Arsenal or Manchester United especially would spend 85 million to sign him when their are other cheaper alternatives worth around 60 million.