5. Jose Antonio Reyes (2003-2006)
Reyes was another who made a bright start to his time at Arsenal, but he quickly faded and ended up netting only 23 times in three-and-a-half years in North London before returning to Spain.
6. Francis Jeffers (2001-2003)
Arsene Wenger splashed out relatively big money to lure the wonderkid from Everton in 2001, but Jeffers cost the Gunners £1m a goal and put Wenger off investing in English talent for several years.
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