Football transfers can be extremely complex and agreeing on a deal that is suitable for all parties can be very difficult. 

The price of the transfer, the player’s wage, bonuses and contract clauses are all some of the things which need to be agreed before a transfer can go ahead.

A new book, “Done Deal: An Insider’s Guide to Football Contracts, Multi-Million Pound Transfers and Premier League Big Business” by Daniel Geey has outlined some of the more weird and wonderful clauses that have been included in contracts over the years. We’ve taken a look at some of the best, and funniest: