And one man caught up in them is Athletic Bilbao striker Inaki Williams.
The Athletic Bilbao forward is linked with a move to Liverpool on a regular basis, but a £42m release clause in his contract - plus a return of just seven goals this season - mean a transfer looks a little unrealistic.
So it’s no surprise that Spanish football expert Guillem Balague was asked about the situation for his Sky Sports column.
Balague often issues updates on Spanish-based 'transfer targets', and he said that while the Reds are tracking the striker, don’t expect a £42m move anytime soon.