3) Robin van Persie (Manchester United)
Injury prone and past his best, Robin van Persie was a risky buy but did at least give Manchester United one very good season.
Signed for: £24m, summer 2012
Acceptable price now: £9m
4) Nani (Manchester United)
A player who never quite fulfilled his potential, Nani made a good start at United but is now surely out of the first-team picture.
Signed for: £18m, summer 2007
Acceptable price now: £8m
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