6) Lionel Messi
Widely regarded as the best player in the world, four-time Ballon d’Or winner Lionel Messi has been surrounded by uncertainty and rumour during this January transfer window.
Messi added fuel to the fire earlier this month by following the Chelsea Instagram account and skipping an open training session. According to the Express, the Blues are doing their best to lure him away from the Nou Camp.
Any potential move would surely only take place in the summer, as it would undoubtedly break the world-record transfer fee.