In keeping with our coverage of vast wastes of money, we come to a free transfer that still managed to turn himself into a waste of money: Sean Davis.
A player we could have signed from Portsmouth for £3m pound in January 2009, Tony Adams' refusal and Gary Megson's patience meant that Wanderers got Davis on a free.
Davis played at all four levels of English football for Fulham, before moving on a free transfer to Tottenham Hotspur. There, in Davis' own words, "I played the first four games, got injured and then was out for three months". It was to prove a sad reoccurrence in Davis' career.
He later moved to Portsmouth in January 2006 as part of a triple deal (Noé Pamarot and Pedro Mendes also travelled to Fratton Park from Spurs with Davis) where under the tutelage of Linvoy Primus, he became a born-again Christian.
Reportedly paid £35,000 a week by Wanderers, Davis made only 3 appearances in his three years at the club. Before tax, that's £1.82m per game. A colossal waste of money.
In his Bolton career, he managed to miss a sitter (for which DownTheMannyRd junior appeared on Match of The Day) and get sent off for two bookable offences in a 3-2 defeat at home to Liverpool. Sent on loan to Bristol City in 2012, irony played another cruel trick on Davis, who made three appearances before aggravating his historic knee injury. He retired from professional football soon after.
Next up: Our Worst Ever No. 10