10. David De Gea (£42 million)
David De Gea transfer saga of 2015 will always be known as the most entertaining (yet a failure) transfer saga of all time. David was hell bent on orchestrating a move to Real Madrid- but not because of his desire, but because of being able to spend time with his girlfriend!!! Now, who among us all haven’t tried that at some point of our lives? We can’t really blame or point fingers at David if Manchester United fans themselves were ready to forgive him. Nevertheless, Manchester United made sure that if Real Madrid wanted to have a shot at buying their best player, they have to shell out a lot of money for the same purpose.