If by injunction you mean gangsters then you are correct. However, due to said ‘injunction’ if you think SDU has a choice on this matter (of signing Carroll) then you’re mistaken.
There’s far bigger players than Mike Ashley in the game here. If Carroll signs, you won’t see much of him.
All things being equal, It will be more than likely be his missus will not fancy a move up north . As for Carroll being mindful of avoiding people (injunction) .... He may "know" people himself which could cancel out any said "injunction"