We choose five from the many awful signings Chelsea have made over the years.
With the transfer window open we take a look at some of the worst signings Premier League clubs have made over the years. In this case, Chelsea are under the microscope...
The Dutch international arrived at the club from Barcelona in the year 2000. However Claudio Ranieri soon arrived and decided he didn't want him. Rather than leave Bogarde remained at Chelsea, picking up an impressive wage packet every week to do nothing.
In four years at Chelsea he played just nine league games and is considered one of the worst Premier League buys of all time.
Asier Del Horno
On paper it looked a good deal. Chelsea snapped up the promising Spaniard from Athletic Bilbao in 2005, spending £8 million on the player.
But he played just one season with the club before leaving and his career has never got back on track.
Juan Sebastian Veron
There has never been any doubt that the Argentine is a gifted footballer. But the fact he cost Manchester United £28.1 million and Chelsea £15 million is in no doubt a shock.
He only managed 15 games for Chelsea in his injury ravaged four year spell at the club.
Hope was high that Casiraghi would be yet another Italian striker to shine at Chelsea.
It cost £5.4 million to bring him in from Lazio in 1998 but he suffered a knee injury that went on to finish his career.
The £15.8 million Romanian started his career at Chelsea with a bang, but he seemed to party a little too hard in the process.
As his form dipped he ended up failing a drugs test and being released from the club 14 months after he signed for Chelsea.