Arsenal and Manchester United target Viktor Gyokeres will reportedly attempt to force a transfer from Sporting Lisbon this summer - seemingly threatening to go on strike again.
The striker has been heavily linked with a move away from the Portuguese club, who are attempting to increase the potential fee for a transfer.
As reported by Record, Gyokeres will refuse to return to Sporting as he looks to secure a departure.
Gyokeres is unhappy with comments made by Sporting president Frederico Varandas.
Although he will be given an extra week off before he is expected to return to pre-season training, it is now anticipated that Gyokeres won't show up.