Cost: £2 million
A lack of positional knowledge, failure to win balls in the air and the inability to tackle made Cygan a tormenting figure for Arsenal fans to watch. Despite mostly being a fringe player the French centre back somehow managed to collect a Premier League winners medal in the 2003- 04 season. What is all the more surprising is that the Gunners went unbeaten with the calamitous centre back on the pitch.
Cygan was not aided by the fact he had to fill the void left by recent retirees Tony Adams, Martin Keown and Steve Bould; club legends in their own right. The Frenchman never looked truly comfortable playing in their shadow but managed to stay at Highbury for three seasons.
Despite his apparent lack in ability Cygan's statistics as a first team Gunner are flattering. In the 2005- 06 season the defender was forced to fill the void left by the injured Ashley Cole and Gael Clichy, deputising as an emergency left back. Arsenal won 12 of 20 games with Cygan in that position, achieving 11 clean sheets.
He was sold to Villareal in 2006 for £2 million.