Robbie Keane is only 21 years old, but has already cost clubs a staggering £31million - even excluding the latest fee offered by Sunderland to Leeds.
His value can only have increased following a superb display at the World Cup where he scored three goals, including last-gasp equalisers against Germany and Spain. Alex Ferguson once claimed he would only pay £500,000 for the striker.
Date From To Fee Aug 1999: Wolves Coventry £6m
Aug 2000: Coventry Inter £13m
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May 2001: Inter Leeds £12m
Keane joined Leeds on loan initially from December 20th, 2000.
