It's that time of the season again.
Clubs will be on the hunt for a bargain or big-money signing, whether they are aiming for the title, looking to clinch a European spot or trying to avoid relegation.
There is one interesting point to consider this season - players who have played for one team in Europe are no longer cup-tied when they move to another club participating in European competition.
So could that mean clubs are more willing to splash the cash?
London-based investment company Carteret Analytics advises three Premier League clubs, and another 12 leading sides from around Europe and the rest of the world, on potential new signings.