In Nwakali's case, the option is literally only an option to hold talks over a move. Nwakali plans to get his permit and return to Arsenal instead of angling for the Porto move.Jeff-Reine Adelaide & Kelechi Nwakali being let go / option to buy this soon is just daft.
Wonder who is making these calls.
In Jeff's case, I'm assuming that he simply wants the move or more game time.