10. Ole Gunnar Solskjaer (Molde to Manchester United, £1.5m, 1996)

The baby-faced assassin is the finest wonder-sub in the history of the game. His debut set the tone in 1996. On as replacement (against Blackburn), he scored within six minutes. Whether it be four goals in 12 minutes against Nottingham Forest or a certain last minute winner in 1999.
