We start our list of transfer flops with Maurice Edu.
The American midfielder was far from the most expensive signing on this list but he was certainly a disappointment.
Plenty of players have made the transfer from the SPFL to the Premier League with aplomb – unfortunately for Stoke, Edu cannot be added to that list.
He played just 10 minutes of senior football for them, with his only appearance coming off the bench against Liverpool.
A large swathe of his time on their books spent out on loan before he joined Philadelphia Union permanently in January 2015.