Time is ticking as the end of the transfer window looms.
Teams across Europe have until 1 September to conduct either astute acquisitions or panic buys in order to get their squads in shape.
BBC Sport examines some 'hot properties' who could be on the move over the next couple of weeks.
Cristiano Ronaldo (Manchester United)
Linked with: Atletico Madrid
Ronaldo has made no secret of his desire to leave Manchester United for a second time, as he wants to play in the Champions League, but suitors for his signature are proving difficult to find.