The relationships between football players and their respective clubs are often precarious and delicate circumstances.
Sometimes no matter how well a player seems to be getting on, or what he's done for the club in terms of of leal servitude, it just isn't to be in the long-run.
Modern day football is particularly fickle in this respect, with the days of 'one-club' men being a consistent element of the game being well and truly in the past.
This summer was particularly juicy in terms of high-profile transfers and players switching allegiances; this January will likely be no different.
For one reason or another there are a large collection of gifted players who either want to open the exit door, or who are forcibly being shoved through it by their current employers.
GMS takes a look at ten high-profile figures who need to move in January in order to get the best result for everyone involved...