Juan Mata looks set to join Manchester United in a mega deal worth £37 million in the next couple of days.
Chelsea seemingly couldn't refuse such a large fee, but will Mata prove money well spent for the Premier League champions?
In the past, there have been some major transfers that haven't gone to plan. Stars have moved on for mega fees and never quite taken off at their new clubs.
So, we're going to take a look at five of the biggest overpriced transfers to have taken place between Premier League clubs.
Do you agree with this list? Which players would you add? Feel free to comment below!