Players have become increasingly powerful in modern football and there is no better example than the transfer window.
Every summer, clubs from across the world are held to ransom by their own employees, forced to sell their prized assets when players decide they want to leave. Unsolicited interviews, strikes and social media posts are all contemporary tactics for forcing an exit, with clubs seldom able to combat player power.
A formal or informal transfer request is often the beginning of the end and usually has the desired effect for players, with plenty of high-profile instances of the tactic being employed both successfully and unsuccessfully over the years.
Here are some of the most shocking transfer requests ever.
